1157185268 has 24 divisors (see below), whose sum is σ = 2035768224. Its totient is φ = 575546400.

The previous prime is 1157185259. The next prime is 1157185277. The reversal of 1157185268 is 8625817511.

It is an interprime number because it is at equal distance from previous prime (1157185259) and next prime (1157185277).

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent 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, 895703 + ... + 896993.

It is an arithmetic number, because the mean of its divisors is an integer number (84823676).

Almost surely, 2^1157185268 is an apocalyptic number.

It is an amenable number.

1157185268 is a deficient number, since it is larger than the sum of its proper divisors (878582956).

1157185268 is a wasteful number, since it uses less digits than its factorization.

1157185268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303 (or 2301 counting only the distinct ones).

The product of its digits is 134400, while the sum is 44.

The square root of 1157185268 is about 34017.4259461236. The cubic root of 1157185268 is about 1049.8670332002.

The spelling of 1157185268 in words is "one billion, one hundred fifty-seven million, one hundred eighty-five thousand, two hundred sixty-eight".