131470531 has 4 divisors (see below), whose sum is σ = 131495200. Its totient is φ = 131445864.

The previous prime is 131470523. The next prime is 131470541. The reversal of 131470531 is 135074131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135074131 = 41 ⋅3294491.

It is a cyclic number.

It is not a de Polignac number, because 131470531 - 2³ = 131470523 is a prime.

It is a super-2 number, since 2×131470531² = 34569001042843922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131470496 and 131470505.

It is not an unprimeable number, because it can be changed into a prime (131470541) 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, 651 + ... + 16228.

It is an arithmetic number, because the mean of its divisors is an integer number (32873800).

Almost surely, 2^131470531 is an apocalyptic number.

131470531 is a deficient number, since it is larger than the sum of its proper divisors (24669).

131470531 is an equidigital number, since it uses as much as digits as its factorization.

131470531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24668.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 131470531 is about 11466.0599597246. The cubic root of 131470531 is about 508.4826501307.

The spelling of 131470531 in words is "one hundred thirty-one million, four hundred seventy thousand, five hundred thirty-one".