256274414134 has 4 divisors (see below), whose sum is σ = 384411621204. Its totient is φ = 128137207066.

The previous prime is 256274414009. The next prime is 256274414141. The reversal of 256274414134 is 431414472652.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64068603532 + ... + 64068603535.

It is an arithmetic number, because the mean of its divisors is an integer number (96102905301).

Almost surely, 2^256274414134 is an apocalyptic number.

256274414134 is a deficient number, since it is larger than the sum of its proper divisors (128137207070).

256274414134 is a wasteful number, since it uses less digits than its factorization.

256274414134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128137207069.

The product of its digits is 645120, while the sum is 43.

Adding to 256274414134 its reverse (431414472652), we get a palindrome (687688886786).

The spelling of 256274414134 in words is "two hundred fifty-six billion, two hundred seventy-four million, four hundred fourteen thousand, one hundred thirty-four".