61172912 has 10 divisors (see below), whose sum is σ = 118522548. Its totient is φ = 30586448.

The previous prime is 61172899. The next prime is 61172933. The reversal of 61172912 is 21927116.

61172912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 as a sum of consecutive naturals, namely, 1911638 + ... + 1911669.

Almost surely, 2^61172912 is an apocalyptic number.

It is an amenable number.

61172912 is a deficient number, since it is larger than the sum of its proper divisors (57349636).

61172912 is a wasteful number, since it uses less digits than its factorization.

61172912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3823315 (or 3823309 counting only the distinct ones).

The product of its digits is 1512, while the sum is 29.

The square root of 61172912 is about 7821.3113989919. The cubic root of 61172912 is about 394.0213169258.

The spelling of 61172912 in words is "sixty-one million, one hundred seventy-two thousand, nine hundred twelve".