130431515 has 4 divisors (see below), whose sum is σ = 156517824. Its totient is φ = 104345208.

The previous prime is 130431479. The next prime is 130431527. The reversal of 130431515 is 515134031.

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

It is a cyclic number.

It is not a de Polignac number, because 130431515 - 2²² = 126237211 is a prime.

It is a Duffinian 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, 13043147 + ... + 13043156.

It is an arithmetic number, because the mean of its divisors is an integer number (39129456).

Almost surely, 2^130431515 is an apocalyptic number.

130431515 is a deficient number, since it is larger than the sum of its proper divisors (26086309).

130431515 is an equidigital number, since it uses as much as digits as its factorization.

130431515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26086308.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 130431515 is about 11420.6617584096. The cubic root of 130431515 is about 507.1395873435.

Adding to 130431515 its reverse (515134031), we get a palindrome (645565546).

The spelling of 130431515 in words is "one hundred thirty million, four hundred thirty-one thousand, five hundred fifteen".