256856102 has 8 divisors (see below), whose sum is σ = 388819200. Its totient is φ = 127249704.

The previous prime is 256856101. The next prime is 256856129. The reversal of 256856102 is 201658652.

256856102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256856101) 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, 588902 + ... + 589337.

It is an arithmetic number, because the mean of its divisors is an integer number (48602400).

Almost surely, 2^256856102 is an apocalyptic number.

256856102 is a deficient number, since it is larger than the sum of its proper divisors (131963098).

256856102 is a wasteful number, since it uses less digits than its factorization.

256856102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178350.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 256856102 is about 16026.7308581632. The cubic root of 256856102 is about 635.6674338861.

The spelling of 256856102 in words is "two hundred fifty-six million, eight hundred fifty-six thousand, one hundred two".