256274414133 has 8 divisors (see below), whose sum is σ = 342731544096. Its totient is φ = 170333446800.

The previous prime is 256274414009. The next prime is 256274414141. The reversal of 256274414133 is 331414472652.

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

It is not a de Polignac number, because 256274414133 - 2¹⁷ = 256274283061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256274414153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129039498 + ... + 129041483.

It is an arithmetic number, because the mean of its divisors is an integer number (42841443012).

Almost surely, 2^256274414133 is an apocalyptic number.

It is an amenable number.

256274414133 is a deficient number, since it is larger than the sum of its proper divisors (86457129963).

256274414133 is a wasteful number, since it uses less digits than its factorization.

256274414133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258081315.

The product of its digits is 483840, while the sum is 42.

Adding to 256274414133 its reverse (331414472652), we get a palindrome (587688886785).

The spelling of 256274414133 in words is "two hundred fifty-six billion, two hundred seventy-four million, four hundred fourteen thousand, one hundred thirty-three".