1358856945 has 32 divisors (see below), whose sum is σ = 2493680640. Its totient is φ = 701343360.

The previous prime is 1358856943. The next prime is 1358857009. The reversal of 1358856945 is 5496588531.

1358856945 is a `hidden beast` number, since 1 + 3 + 588 + 56 + 9 + 4 + 5 = 666.

It is not a de Polignac number, because 1358856945 - 2¹ = 1358856943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1358856891 and 1358856900.

It is not an unprimeable number, because it can be changed into a prime (1358856943) 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, 158164 + ... + 166533.

It is an arithmetic number, because the mean of its divisors is an integer number (77927520).

Almost surely, 2^1358856945 is an apocalyptic number.

1358856945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1358856945 is a deficient number, since it is larger than the sum of its proper divisors (1134823695).

1358856945 is a wasteful number, since it uses less digits than its factorization.

1358856945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324742 (or 324736 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 54.

The square root of 1358856945 is about 36862.6768561373. The cubic root of 1358856945 is about 1107.6211656199.

The spelling of 1358856945 in words is "one billion, three hundred fifty-eight million, eight hundred fifty-six thousand, nine hundred forty-five".