1157911564 has 24 divisors (see below), whose sum is σ = 2073759408. Its totient is φ = 565506240.

The previous prime is 1157911543. The next prime is 1157911589. The reversal of 1157911564 is 4651197511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36094 + ... + 60154.

It is an arithmetic number, because the mean of its divisors is an integer number (86406642).

Almost surely, 2^1157911564 is an apocalyptic number.

It is an amenable number.

1157911564 is a deficient number, since it is larger than the sum of its proper divisors (915847844).

1157911564 is a wasteful number, since it uses less digits than its factorization.

1157911564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24345 (or 24343 counting only the distinct ones).

The product of its digits is 37800, while the sum is 40.

The square root of 1157911564 is about 34028.0996236934. The cubic root of 1157911564 is about 1050.0866335170.

The spelling of 1157911564 in words is "one billion, one hundred fifty-seven million, nine hundred eleven thousand, five hundred sixty-four".