61342564 has 36 divisors (see below), whose sum is σ = 118286784. Its totient is φ = 27778608.

The previous prime is 61342549. The next prime is 61342597. The reversal of 61342564 is 46524316.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32289 + ... + 34135.

It is an arithmetic number, because the mean of its divisors is an integer number (3285744).

Almost surely, 2^61342564 is an apocalyptic number.

It is an amenable number.

61342564 is a deficient number, since it is larger than the sum of its proper divisors (56944220).

61342564 is a wasteful number, since it uses less digits than its factorization.

61342564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912 (or 1891 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 61342564 is about 7832.1493857051. The cubic root of 61342564 is about 394.3852296542.

The spelling of 61342564 in words is "sixty-one million, three hundred forty-two thousand, five hundred sixty-four".