130537531 has 4 divisors (see below), whose sum is σ = 130607064. Its totient is φ = 130468000.

The previous prime is 130537529. The next prime is 130537549. The reversal of 130537531 is 135735031.

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 130537531 - 2¹ = 130537529 is a prime.

It is a super-2 number, since 2×130537531² = 34080093999151922, 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 130537531.

It is not an unprimeable number, because it can be changed into a prime (130537571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31870 + ... + 35731.

It is an arithmetic number, because the mean of its divisors is an integer number (32651766).

Almost surely, 2^130537531 is an apocalyptic number.

130537531 is a deficient number, since it is larger than the sum of its proper divisors (69533).

130537531 is an equidigital number, since it uses as much as digits as its factorization.

130537531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69532.

The product of its (nonzero) digits is 4725, while the sum is 28.

The square root of 130537531 is about 11425.3022279500. The cubic root of 130537531 is about 507.2769527907.

The spelling of 130537531 in words is "one hundred thirty million, five hundred thirty-seven thousand, five hundred thirty-one".