130502391 has 32 divisors (see below), whose sum is σ = 186624000. Its totient is φ = 80940288.

The previous prime is 130502381. The next prime is 130502413. The reversal of 130502391 is 193205031.

It is a happy number.

It is not a de Polignac number, because 130502391 - 2⁹ = 130501879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130502381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 485005 + ... + 485273.

It is an arithmetic number, because the mean of its divisors is an integer number (5832000).

Almost surely, 2^130502391 is an apocalyptic number.

130502391 is a deficient number, since it is larger than the sum of its proper divisors (56121609).

130502391 is a wasteful number, since it uses less digits than its factorization.

130502391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 130502391 is about 11423.7643095435. The cubic root of 130502391 is about 507.2314299649.

The spelling of 130502391 in words is "one hundred thirty million, five hundred two thousand, three hundred ninety-one".