256898134 has 8 divisors (see below), whose sum is σ = 385416648. Its totient is φ = 128425920.

The previous prime is 256898077. The next prime is 256898143. The reversal of 256898134 is 431898652.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11494 + ... + 25414.

It is an arithmetic number, because the mean of its divisors is an integer number (48177081).

Almost surely, 2^256898134 is an apocalyptic number.

256898134 is a deficient number, since it is larger than the sum of its proper divisors (128518514).

256898134 is a wasteful number, since it uses less digits than its factorization.

256898134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23150.

The product of its digits is 414720, while the sum is 46.

The square root of 256898134 is about 16028.0421137455. The cubic root of 256898134 is about 635.7021055902.

The spelling of 256898134 in words is "two hundred fifty-six million, eight hundred ninety-eight thousand, one hundred thirty-four".