1258165359 has 64 divisors (see below), whose sum is σ = 2165045760. Its totient is φ = 713664000.

The previous prime is 1258165339. The next prime is 1258165367. The reversal of 1258165359 is 9535618521.

1258165359 is a `hidden beast` number, since 1 + 2 + 581 + 65 + 3 + 5 + 9 = 666.

It is not a de Polignac number, because 1258165359 - 2²⁸ = 989729903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258165339) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1064749 + ... + 1065929.

It is an arithmetic number, because the mean of its divisors is an integer number (33828840).

Almost surely, 2^1258165359 is an apocalyptic number.

1258165359 is a deficient number, since it is larger than the sum of its proper divisors (906880401).

1258165359 is a wasteful number, since it uses less digits than its factorization.

1258165359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429 (or 1423 counting only the distinct ones).

The product of its digits is 324000, while the sum is 45.

The square root of 1258165359 is about 35470.6267071784. The cubic root of 1258165359 is about 1079.5578205284.

The spelling of 1258165359 in words is "one billion, two hundred fifty-eight million, one hundred sixty-five thousand, three hundred fifty-nine".