131427813 has 32 divisors (see below), whose sum is σ = 196283520. Its totient is φ = 77552640.

The previous prime is 131427809. The next prime is 131427841. The reversal of 131427813 is 318724131.

It is not a de Polignac number, because 131427813 - 2² = 131427809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131427893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214095 + ... + 214707.

It is an arithmetic number, because the mean of its divisors is an integer number (6133860).

Almost surely, 2^131427813 is an apocalyptic number.

It is an amenable number.

131427813 is a deficient number, since it is larger than the sum of its proper divisors (64855707).

131427813 is a wasteful number, since it uses less digits than its factorization.

131427813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789.

The product of its digits is 4032, while the sum is 30.

The square root of 131427813 is about 11464.1970063324. The cubic root of 131427813 is about 508.4275713368.

The spelling of 131427813 in words is "one hundred thirty-one million, four hundred twenty-seven thousand, eight hundred thirteen".