15131214401255 has 4 divisors (see below), whose sum is σ = 18157457281512. Its totient is φ = 12104971521000.

The previous prime is 15131214401203. The next prime is 15131214401279. The reversal of 15131214401255 is 55210441213151.

It is a happy number.

15131214401255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-15131214401255 is a prime.

It is a Duffinian number.

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, 1513121440121 + ... + 1513121440130.

It is an arithmetic number, because the mean of its divisors is an integer number (4539364320378).

Almost surely, 2^{15131214401255} is an apocalyptic number.

15131214401255 is a deficient number, since it is larger than the sum of its proper divisors (3026242880257).

15131214401255 is an equidigital number, since it uses as much as digits as its factorization.

15131214401255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026242880256.

The product of its (nonzero) digits is 24000, while the sum is 35.

The spelling of 15131214401255 in words is "fifteen trillion, one hundred thirty-one billion, two hundred fourteen million, four hundred one thousand, two hundred fifty-five".