61013456 has 40 divisors (see below), whose sum is σ = 139467264. Its totient is φ = 25303680.

The previous prime is 61013437. The next prime is 61013489. The reversal of 61013456 is 65431016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5315 + ... + 12258.

Almost surely, 2^61013456 is an apocalyptic number.

It is an amenable number.

61013456 is an abundant number, since it is smaller than the sum of its proper divisors (78453808).

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

61013456 is a wasteful number, since it uses less digits than its factorization.

61013456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17619 (or 17613 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 61013456 is about 7811.1110605342. Note that the first 3 decimals coincide. The cubic root of 61013456 is about 393.6786612674.

The spelling of 61013456 in words is "sixty-one million, thirteen thousand, four hundred fifty-six".