130661564 has 24 divisors (see below), whose sum is σ = 250459776. Its totient is φ = 59150000.

The previous prime is 130661549. The next prime is 130661569. The reversal of 130661564 is 465166031.

It is a super-3 number, since 3×130661564³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130661564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130661569) 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 in 7 ways as a sum of consecutive naturals, for example, 5129 + ... + 16959.

It is an arithmetic number, because the mean of its divisors is an integer number (10435824).

Almost surely, 2^130661564 is an apocalyptic number.

It is an amenable number.

130661564 is a deficient number, since it is larger than the sum of its proper divisors (119798212).

130661564 is a wasteful number, since it uses less digits than its factorization.

130661564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12097 (or 12095 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 130661564 is about 11430.7289356366. The cubic root of 130661564 is about 507.4375685778.

The spelling of 130661564 in words is "one hundred thirty million, six hundred sixty-one thousand, five hundred sixty-four".