1153115256 has 16 divisors (see below), whose sum is σ = 2882788200. Its totient is φ = 384371744.

The previous prime is 1153115237. The next prime is 1153115291. The reversal of 1153115256 is 6525113511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24023211 + ... + 24023258.

Almost surely, 2^1153115256 is an apocalyptic number.

It is an amenable number.

1153115256 is an abundant number, since it is smaller than the sum of its proper divisors (1729672944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1153115256 is a wasteful number, since it uses less digits than its factorization.

1153115256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48046478 (or 48046474 counting only the distinct ones).

The product of its digits is 4500, while the sum is 30.

The square root of 1153115256 is about 33957.5507950735. The cubic root of 1153115256 is about 1048.6347353318.

Adding to 1153115256 its reverse (6525113511), we get a palindrome (7678228767).

The spelling of 1153115256 in words is "one billion, one hundred fifty-three million, one hundred fifteen thousand, two hundred fifty-six".