130500644 has 12 divisors (see below), whose sum is σ = 228790044. Its totient is φ = 65132064.

The previous prime is 130500637. The next prime is 130500659. The reversal of 130500644 is 446005031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 83028544 + 47472100 = 9112^2 + 6890^2 .

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, 27059 + ... + 31514.

It is an arithmetic number, because the mean of its divisors is an integer number (19065837).

Almost surely, 2^130500644 is an apocalyptic number.

It is an amenable number.

130500644 is a deficient number, since it is larger than the sum of its proper divisors (98289400).

130500644 is a wasteful number, since it uses less digits than its factorization.

130500644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59134 (or 59132 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 130500644 is about 11423.6878458753. The cubic root of 130500644 is about 507.2291665650.

Adding to 130500644 its reverse (446005031), we get a palindrome (576505675).

The spelling of 130500644 in words is "one hundred thirty million, five hundred thousand, six hundred forty-four".