130066531 has 12 divisors (see below), whose sum is σ = 154523808. Its totient is φ = 109111632.

The previous prime is 130066513. The next prime is 130066543. The reversal of 130066531 is 135660031.

It is not a de Polignac number, because 130066531 - 2¹¹ = 130064483 is a prime.

It is a super-2 number, since 2×130066531² = 33834604972747922, 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 = 130066496 and 130066505.

It is not an unprimeable number, because it can be changed into a prime (130066501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25936 + ... + 30541.

It is an arithmetic number, because the mean of its divisors is an integer number (12876984).

Almost surely, 2^130066531 is an apocalyptic number.

130066531 is a deficient number, since it is larger than the sum of its proper divisors (24457277).

130066531 is an equidigital number, since it uses as much as digits as its factorization.

130066531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56538 (or 56531 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 130066531 is about 11404.6714551538. The cubic root of 130066531 is about 506.6661057723. Note that the first 3 decimals are identical.

The spelling of 130066531 in words is "one hundred thirty million, sixty-six thousand, five hundred thirty-one".