130624531 has 2 divisors, whose sum is σ = 130624532. Its totient is φ = 130624530.

The previous prime is 130624519. The next prime is 130624537. The reversal of 130624531 is 135426031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130624531 - 2¹¹ = 130622483 is a prime.

It is a super-2 number, since 2×130624531² = 34125536197939922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130624496 and 130624505.

It is not a weakly prime, because it can be changed into another prime (130624537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65312265 + 65312266.

It is an arithmetic number, because the mean of its divisors is an integer number (65312266).

Almost surely, 2^130624531 is an apocalyptic number.

130624531 is a deficient number, since it is larger than the sum of its proper divisors (1).

130624531 is an equidigital number, since it uses as much as digits as its factorization.

130624531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 130624531 is about 11429.1089328959. The cubic root of 130624531 is about 507.3896235648.

The spelling of 130624531 in words is "one hundred thirty million, six hundred twenty-four thousand, five hundred thirty-one".