1153345256 has 32 divisors (see below), whose sum is σ = 2472888000. Its totient is φ = 494004096.

The previous prime is 1153345223. The next prime is 1153345261. The reversal of 1153345256 is 6525433511.

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, 112055 + ... + 121913.

It is an arithmetic number, because the mean of its divisors is an integer number (77277750).

Almost surely, 2^1153345256 is an apocalyptic number.

It is an amenable number.

1153345256 is an abundant number, since it is smaller than the sum of its proper divisors (1319542744).

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

1153345256 is a wasteful number, since it uses less digits than its factorization.

1153345256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11961 (or 11957 counting only the distinct ones).

The product of its digits is 54000, while the sum is 35.

The square root of 1153345256 is about 33960.9372073269. The cubic root of 1153345256 is about 1048.7044508131.

Adding to 1153345256 its reverse (6525433511), we get a palindrome (7678778767).

The spelling of 1153345256 in words is "one billion, one hundred fifty-three million, three hundred forty-five thousand, two hundred fifty-six".