61404512 has 24 divisors (see below), whose sum is σ = 130190256. Its totient is φ = 28340352.

The previous prime is 61404487. The next prime is 61404569. The reversal of 61404512 is 21540416.

61404512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 3 ways as a sum of consecutive naturals, for example, 73388 + ... + 74219.

It is an arithmetic number, because the mean of its divisors is an integer number (5424594).

Almost surely, 2^61404512 is an apocalyptic number.

It is an amenable number.

61404512 is an abundant number, since it is smaller than the sum of its proper divisors (68785744).

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

61404512 is a wasteful number, since it uses less digits than its factorization.

61404512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147630 (or 147622 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 61404512 is about 7836.1031131552. The cubic root of 61404512 is about 394.5179442277.

Adding to 61404512 its reverse (21540416), we get a palindrome (82944928).

It can be divided in two parts, 61404 and 512, that added together give a palindrome (61916).

The spelling of 61404512 in words is "sixty-one million, four hundred four thousand, five hundred twelve".