130391815 has 8 divisors (see below), whose sum is σ = 156794400. Its totient is φ = 104097312.

The previous prime is 130391783. The next prime is 130391827. The reversal of 130391815 is 518193031.

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 130391815 - 2⁵ = 130391783 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24340 + ... + 29209.

It is an arithmetic number, because the mean of its divisors is an integer number (19599300).

Almost surely, 2^130391815 is an apocalyptic number.

130391815 is a deficient number, since it is larger than the sum of its proper divisors (26402585).

130391815 is an equidigital number, since it uses as much as digits as its factorization.

130391815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54041.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 130391815 is about 11418.9235482159. The cubic root of 130391815 is about 507.0881287047.

The spelling of 130391815 in words is "one hundred thirty million, three hundred ninety-one thousand, eight hundred fifteen".