61132564 has 12 divisors (see below), whose sum is σ = 107060800. Its totient is φ = 30543768.

The previous prime is 61132559. The next prime is 61132579. The reversal of 61132564 is 46523116.

61132564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1477 + ... + 11155.

Almost surely, 2^61132564 is an apocalyptic number.

It is an amenable number.

61132564 is a deficient number, since it is larger than the sum of its proper divisors (45928236).

61132564 is a wasteful number, since it uses less digits than its factorization.

61132564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11262 (or 11260 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 61132564 is about 7818.7316106898. The cubic root of 61132564 is about 393.9346692678.

The spelling of 61132564 in words is "sixty-one million, one hundred thirty-two thousand, five hundred sixty-four".