130065639 has 16 divisors (see below), whose sum is σ = 189384960. Its totient is φ = 78744960.

The previous prime is 130065587. The next prime is 130065671. The reversal of 130065639 is 936560031.

It is a de Polignac number, because none of the positive numbers 2^k-130065639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130065139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47814 + ... + 50460.

It is an arithmetic number, because the mean of its divisors is an integer number (11836560).

Almost surely, 2^130065639 is an apocalyptic number.

130065639 is a deficient number, since it is larger than the sum of its proper divisors (59319321).

130065639 is a wasteful number, since it uses less digits than its factorization.

130065639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 130065639 is about 11404.6323483048. The cubic root of 130065639 is about 506.6649475261.

The spelling of 130065639 in words is "one hundred thirty million, sixty-five thousand, six hundred thirty-nine".