256265134 has 8 divisors (see below), whose sum is σ = 386846568. Its totient is φ = 127316280.

The previous prime is 256265077. The next prime is 256265159. The reversal of 256265134 is 431562652.

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

It is a self number, because there is not a number n which added to its sum of digits gives 256265134.

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, 407752 + ... + 408379.

It is an arithmetic number, because the mean of its divisors is an integer number (48355821).

Almost surely, 2^256265134 is an apocalyptic number.

256265134 is a deficient number, since it is larger than the sum of its proper divisors (130581434).

256265134 is a wasteful number, since it uses less digits than its factorization.

256265134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816290.

The product of its digits is 43200, while the sum is 34.

The square root of 256265134 is about 16008.2832933454. The cubic root of 256265134 is about 635.1795503587.

The spelling of 256265134 in words is "two hundred fifty-six million, two hundred sixty-five thousand, one hundred thirty-four".