130316531 has 8 divisors (see below), whose sum is σ = 134312640. Its totient is φ = 126364392.

The previous prime is 130316521. The next prime is 130316533. The reversal of 130316531 is 135613031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130316531 - 2¹⁴ = 130300147 is a prime.

It is a super-2 number, since 2×130316531² = 33964796503747922, 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 = 130316497 and 130316506.

It is not an unprimeable number, because it can be changed into a prime (130316533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4925 + ... + 16878.

It is an arithmetic number, because the mean of its divisors is an integer number (16789080).

Almost surely, 2^130316531 is an apocalyptic number.

130316531 is a deficient number, since it is larger than the sum of its proper divisors (3996109).

130316531 is a wasteful number, since it uses less digits than its factorization.

130316531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21985.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 130316531 is about 11415.6266144264. The cubic root of 130316531 is about 506.9905178432.

Adding to 130316531 its reverse (135613031), we get a palindrome (265929562).

The spelling of 130316531 in words is "one hundred thirty million, three hundred sixteen thousand, five hundred thirty-one".