13147345457 has 16 divisors (see below), whose sum is σ = 13586360400. Its totient is φ = 12712992768.

The previous prime is 13147345447. The next prime is 13147345459. The reversal of 13147345457 is 75454374131.

It can be written as a sum of positive squares in 8 ways, for example, as 486820096 + 12660525361 = 22064^2 + 112519^2 .

It is a cyclic number.

It is not a de Polignac number, because 13147345457 - 2²⁸ = 12878910001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13147345459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4600373 + ... + 4603229.

It is an arithmetic number, because the mean of its divisors is an integer number (849147525).

Almost surely, 2^13147345457 is an apocalyptic number.

It is an amenable number.

13147345457 is a deficient number, since it is larger than the sum of its proper divisors (439014943).

13147345457 is a wasteful number, since it uses less digits than its factorization.

13147345457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3620.

The product of its digits is 705600, while the sum is 44.

The spelling of 13147345457 in words is "thirteen billion, one hundred forty-seven million, three hundred forty-five thousand, four hundred fifty-seven".