130505644 has 6 divisors (see below), whose sum is σ = 228384884. Its totient is φ = 65252820.

The previous prime is 130505633. The next prime is 130505647. The reversal of 130505644 is 446505031.

It is not an unprimeable number, because it can be changed into a prime (130505647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16313202 + ... + 16313209.

Almost surely, 2^130505644 is an apocalyptic number.

It is an amenable number.

130505644 is a deficient number, since it is larger than the sum of its proper divisors (97879240).

130505644 is a wasteful number, since it uses less digits than its factorization.

130505644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32626415 (or 32626413 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 130505644 is about 11423.9066872940. The cubic root of 130505644 is about 507.2356444729.

The spelling of 130505644 in words is "one hundred thirty million, five hundred five thousand, six hundred forty-four".