256123922 has 8 divisors (see below), whose sum is σ = 396579072. Its totient is φ = 123930900.

The previous prime is 256123919. The next prime is 256123927. The reversal of 256123922 is 229321652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (256123927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2065454 + ... + 2065577.

It is an arithmetic number, because the mean of its divisors is an integer number (49572384).

Almost surely, 2^256123922 is an apocalyptic number.

256123922 is a deficient number, since it is larger than the sum of its proper divisors (140455150).

256123922 is a wasteful number, since it uses less digits than its factorization.

256123922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4131064.

The product of its digits is 12960, while the sum is 32.

The square root of 256123922 is about 16003.8720939653. The cubic root of 256123922 is about 635.0628594230.

The spelling of 256123922 in words is "two hundred fifty-six million, one hundred twenty-three thousand, nine hundred twenty-two".