256113436 has 12 divisors (see below), whose sum is σ = 448315560. Its totient is φ = 128023280.

The previous prime is 256113433. The next prime is 256113439. The reversal of 256113436 is 634311652.

It is an interprime number because it is at equal distance from previous prime (256113433) and next prime (256113439).

It is a junction number, because it is equal to n+sod(n) for n = 256113398 and 256113407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256113433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18366 + ... + 29146.

It is an arithmetic number, because the mean of its divisors is an integer number (37359630).

Almost surely, 2^256113436 is an apocalyptic number.

It is an amenable number.

256113436 is a deficient number, since it is larger than the sum of its proper divisors (192202124).

256113436 is a wasteful number, since it uses less digits than its factorization.

256113436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16724 (or 16722 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 256113436 is about 16003.5444823951. The cubic root of 256113436 is about 635.0541925767.

The spelling of 256113436 in words is "two hundred fifty-six million, one hundred thirteen thousand, four hundred thirty-six".