131507371 has 4 divisors (see below), whose sum is σ = 131731992. Its totient is φ = 131282752.

The previous prime is 131507347. The next prime is 131507423. The reversal of 131507371 is 173705131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 173705131 = 23 ⋅7552397.

It is a cyclic number.

It is not a de Polignac number, because 131507371 - 2⁵ = 131507339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131507171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111430 + ... + 112603.

It is an arithmetic number, because the mean of its divisors is an integer number (32932998).

Almost surely, 2^131507371 is an apocalyptic number.

131507371 is a deficient number, since it is larger than the sum of its proper divisors (224621).

131507371 is an equidigital number, since it uses as much as digits as its factorization.

131507371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224620.

The product of its (nonzero) digits is 2205, while the sum is 28.

The square root of 131507371 is about 11467.6663275489. Note that the first 3 decimals coincide. The cubic root of 131507371 is about 508.5301404980.

The spelling of 131507371 in words is "one hundred thirty-one million, five hundred seven thousand, three hundred seventy-one".