130292531 has 4 divisors (see below), whose sum is σ = 130344864. Its totient is φ = 130240200.

The previous prime is 130292501. The next prime is 130292543. The reversal of 130292531 is 135292031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135292031 = 7 ⋅19327433.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130292531 is a prime.

It is a super-2 number, since 2×130292531² = 33952287268771922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130292531.

It is not an unprimeable number, because it can be changed into a prime (130292501) 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, 22235 + ... + 27476.

It is an arithmetic number, because the mean of its divisors is an integer number (32586216).

Almost surely, 2^130292531 is an apocalyptic number.

130292531 is a deficient number, since it is larger than the sum of its proper divisors (52333).

130292531 is an equidigital number, since it uses as much as digits as its factorization.

130292531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52332.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 130292531 is about 11414.5753753699. The cubic root of 130292531 is about 506.9593922974.

The spelling of 130292531 in words is "one hundred thirty million, two hundred ninety-two thousand, five hundred thirty-one".