130517231 has 4 divisors (see below), whose sum is σ = 140557032. Its totient is φ = 120477432.

The previous prime is 130517201. The next prime is 130517237. The reversal of 130517231 is 132715031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130517231 is a prime.

It is a super-2 number, since 2×130517231² = 34069495175814722, 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 = 130517197 and 130517206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130517237) 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, 5019881 + ... + 5019906.

It is an arithmetic number, because the mean of its divisors is an integer number (35139258).

Almost surely, 2^130517231 is an apocalyptic number.

130517231 is a deficient number, since it is larger than the sum of its proper divisors (10039801).

130517231 is a wasteful number, since it uses less digits than its factorization.

130517231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10039800.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 130517231 is about 11424.4138142839. The cubic root of 130517231 is about 507.2506557406.

The spelling of 130517231 in words is "one hundred thirty million, five hundred seventeen thousand, two hundred thirty-one".