1078236945 has 12 divisors (see below), whose sum is σ = 1868944116. Its totient is φ = 575059680.

The previous prime is 1078236931. The next prime is 1078236949. The reversal of 1078236945 is 5496328701.

1078236945 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 569824641 + 508412304 = 23871^2 + 22548^2 .

It is not a de Polignac number, because 1078236945 - 2¹⁵ = 1078204177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 23960821 = 1078236945 / (1 + 0 + 7 + 8 + 2 + 3 + 6 + 9 + 4 + 5).

1078236945 is strictly pandigital in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1078236945.

It is not an unprimeable number, because it can be changed into a prime (1078236949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11980366 + ... + 11980455.

It is an arithmetic number, because the mean of its divisors is an integer number (155745343).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1078236945 = 2156473890, but 3⋅1078236945 = 3234710835 is not.

Almost surely, 2^1078236945 is an apocalyptic number.

1078236945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1078236945 is a deficient number, since it is larger than the sum of its proper divisors (790707171).

1078236945 is a wasteful number, since it uses less digits than its factorization.

1078236945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23960832 (or 23960829 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1078236945 is about 32836.5184664879. The cubic root of 1078236945 is about 1025.4269710368.

The spelling of 1078236945 in words is "one billion, seventy-eight million, two hundred thirty-six thousand, nine hundred forty-five".