130124531 has 4 divisors (see below), whose sum is σ = 130998000. Its totient is φ = 129251064.

The previous prime is 130124513. The next prime is 130124539. The reversal of 130124531 is 135421031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130124531 - 2²² = 125930227 is a prime.

It is a super-2 number, since 2×130124531² = 33864787135939922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130124539) 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, 436511 + ... + 436808.

It is an arithmetic number, because the mean of its divisors is an integer number (32749500).

Almost surely, 2^130124531 is an apocalyptic number.

130124531 is a deficient number, since it is larger than the sum of its proper divisors (873469).

130124531 is an equidigital number, since it uses as much as digits as its factorization.

130124531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873468.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 130124531 is about 11407.2139894016. The cubic root of 130124531 is about 506.7414063817.

Adding to 130124531 its reverse (135421031), we get a palindrome (265545562).

The spelling of 130124531 in words is "one hundred thirty million, one hundred twenty-four thousand, five hundred thirty-one".