256134308 has 24 divisors (see below), whose sum is σ = 475114752. Its totient is φ = 120403584.

The previous prime is 256134299. The next prime is 256134311. The reversal of 256134308 is 803431652.

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, 95441 + ... + 98087.

It is an arithmetic number, because the mean of its divisors is an integer number (19796448).

Almost surely, 2^256134308 is an apocalyptic number.

It is an amenable number.

256134308 is a deficient number, since it is larger than the sum of its proper divisors (218980444).

256134308 is a wasteful number, since it uses less digits than its factorization.

256134308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091 (or 4089 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 256134308 is about 16004.1965746488. The cubic root of 256134308 is about 635.0714433846.

The spelling of 256134308 in words is "two hundred fifty-six million, one hundred thirty-four thousand, three hundred eight".