1047619845 has 32 divisors (see below), whose sum is σ = 1865030400. Its totient is φ = 557952192.

The previous prime is 1047619841. The next prime is 1047619897. The reversal of 1047619845 is 5489167401.

1047619845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1047619845 - 2² = 1047619841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1047619845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047619841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99336 + ... + 109374.

It is an arithmetic number, because the mean of its divisors is an integer number (58282200).

Almost surely, 2^1047619845 is an apocalyptic number.

1047619845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1047619845 is a deficient number, since it is larger than the sum of its proper divisors (817410555).

1047619845 is a wasteful number, since it uses less digits than its factorization.

1047619845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10826 (or 10820 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1047619845 is about 32366.9560663341. The cubic root of 1047619845 is about 1015.6277818559.

The spelling of 1047619845 in words is "one billion, forty-seven million, six hundred nineteen thousand, eight hundred forty-five".