256173112 has 32 divisors (see below), whose sum is σ = 524573280. Its totient is φ = 116565120.

The previous prime is 256173107. The next prime is 256173131. The reversal of 256173112 is 211371652.

It is a happy number.

256173112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9963 + ... + 24730.

It is an arithmetic number, because the mean of its divisors is an integer number (16392915).

Almost surely, 2^256173112 is an apocalyptic number.

It is an amenable number.

256173112 is an abundant number, since it is smaller than the sum of its proper divisors (268400168).

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

256173112 is a wasteful number, since it uses less digits than its factorization.

256173112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34783 (or 34779 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 256173112 is about 16005.4088357655. The cubic root of 256173112 is about 635.1035125857.

The spelling of 256173112 in words is "two hundred fifty-six million, one hundred seventy-three thousand, one hundred twelve".