61573912 has 8 divisors (see below), whose sum is σ = 115451100. Its totient is φ = 30786952.

The previous prime is 61573903. The next prime is 61573937. The reversal of 61573912 is 21937516.

61573912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 3848362 + ... + 3848377.

Almost surely, 2^61573912 is an apocalyptic number.

It is an amenable number.

61573912 is a deficient number, since it is larger than the sum of its proper divisors (53877188).

61573912 is a wasteful number, since it uses less digits than its factorization.

61573912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7696745 (or 7696741 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 61573912 is about 7846.9046126482. The cubic root of 61573912 is about 394.8804038934.

The spelling of 61573912 in words is "sixty-one million, five hundred seventy-three thousand, nine hundred twelve".