61138912 has 24 divisors (see below), whose sum is σ = 120594096. Its totient is φ = 30511872.

The previous prime is 61138901. The next prime is 61138933. The reversal of 61138912 is 21983116.

It is a congruent number.

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, 19228 + ... + 22180.

It is an arithmetic number, because the mean of its divisors is an integer number (5024754).

Almost surely, 2^61138912 is an apocalyptic number.

It is an amenable number.

61138912 is a deficient number, since it is larger than the sum of its proper divisors (59455184).

61138912 is a wasteful number, since it uses less digits than its factorization.

61138912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610 (or 3602 counting only the distinct ones).

The product of its digits is 2592, while the sum is 31.

The square root of 61138912 is about 7819.1375483489. The cubic root of 61138912 is about 393.9483041762.

The spelling of 61138912 in words is "sixty-one million, one hundred thirty-eight thousand, nine hundred twelve".