130815518 has 8 divisors (see below), whose sum is σ = 197251200. Its totient is φ = 65065120.

The previous prime is 130815481. The next prime is 130815539. The reversal of 130815518 is 815518031.

It is a happy number.

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

It is a super-2 number, since 2×130815518² = 34225399499216648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170843 + ... + 171606.

It is an arithmetic number, because the mean of its divisors is an integer number (24656400).

Almost surely, 2^130815518 is an apocalyptic number.

130815518 is a deficient number, since it is larger than the sum of its proper divisors (66435682).

130815518 is a wasteful number, since it uses less digits than its factorization.

130815518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342642.

The product of its (nonzero) digits is 4800, while the sum is 32.

The square root of 130815518 is about 11437.4611693330. The cubic root of 130815518 is about 507.6367890633.

The spelling of 130815518 in words is "one hundred thirty million, eight hundred fifteen thousand, five hundred eighteen".