256103170 has 16 divisors (see below), whose sum is σ = 461259000. Its totient is φ = 102380544.

The previous prime is 256103167. The next prime is 256103201. The reversal of 256103170 is 71301652.

It can be written as a sum of positive squares in 4 ways, for example, as 197993041 + 58110129 = 14071^2 + 7623^2 .

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, 12706 + ... + 25954.

Almost surely, 2^256103170 is an apocalyptic number.

256103170 is a deficient number, since it is larger than the sum of its proper divisors (205155830).

256103170 is a wasteful number, since it uses less digits than its factorization.

256103170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15189.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 256103170 is about 16003.2237377348. The cubic root of 256103170 is about 635.0457073347.

The spelling of 256103170 in words is "two hundred fifty-six million, one hundred three thousand, one hundred seventy".