61122912 has 24 divisors (see below), whose sum is σ = 160447896. Its totient is φ = 20374272.

The previous prime is 61122911. The next prime is 61122959. The reversal of 61122912 is 21922116.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61122911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318253 + ... + 318444.

It is an arithmetic number, because the mean of its divisors is an integer number (6685329).

Almost surely, 2^61122912 is an apocalyptic number.

It is an amenable number.

61122912 is an abundant number, since it is smaller than the sum of its proper divisors (99324984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61122912 is a wasteful number, since it uses less digits than its factorization.

61122912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636710 (or 636702 counting only the distinct ones).

The product of its digits is 432, while the sum is 24.

The square root of 61122912 is about 7818.1143506603. The cubic root of 61122912 is about 393.9139358687.

The spelling of 61122912 in words is "sixty-one million, one hundred twenty-two thousand, nine hundred twelve".