130640732 has 24 divisors (see below), whose sum is σ = 242009040. Its totient is φ = 61534080.

The previous prime is 130640729. The next prime is 130640749. The reversal of 130640732 is 237046031.

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, 9008 + ... + 18504.

It is an arithmetic number, because the mean of its divisors is an integer number (10083710).

Almost surely, 2^130640732 is an apocalyptic number.

It is an amenable number.

130640732 is a deficient number, since it is larger than the sum of its proper divisors (111368308).

130640732 is a wasteful number, since it uses less digits than its factorization.

130640732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9701 (or 9699 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 130640732 is about 11429.8176713367. The cubic root of 130640732 is about 507.4105994091.

Adding to 130640732 its reverse (237046031), we get a palindrome (367686763).

The spelling of 130640732 in words is "one hundred thirty million, six hundred forty thousand, seven hundred thirty-two".