61413512 has 16 divisors (see below), whose sum is σ = 115915200. Its totient is φ = 30502800.

The previous prime is 61413497. The next prime is 61413523. The reversal of 61413512 is 21531416.

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, 24212 + ... + 26627.

It is an arithmetic number, because the mean of its divisors is an integer number (7244700).

Almost surely, 2^61413512 is an apocalyptic number.

It is an amenable number.

61413512 is a deficient number, since it is larger than the sum of its proper divisors (54501688).

61413512 is a wasteful number, since it uses less digits than its factorization.

61413512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50996 (or 50992 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 61413512 is about 7836.6773571457. The cubic root of 61413512 is about 394.5372179907.

Adding to 61413512 its reverse (21531416), we get a palindrome (82944928).

The spelling of 61413512 in words is "sixty-one million, four hundred thirteen thousand, five hundred twelve".