61144896 has 56 divisors (see below), whose sum is σ = 167014144. Its totient is φ = 19722240.

The previous prime is 61144871. The next prime is 61144901. The reversal of 61144896 is 69844116.

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, 816 + ... + 11088.

Almost surely, 2^61144896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61144896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83507072).

61144896 is an abundant number, since it is smaller than the sum of its proper divisors (105869248).

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

61144896 is a wasteful number, since it uses less digits than its factorization.

61144896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10319 (or 10309 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 61144896 is about 7819.5201898838. The cubic root of 61144896 is about 393.9611563826.

The spelling of 61144896 in words is "sixty-one million, one hundred forty-four thousand, eight hundred ninety-six".