61382120 has 32 divisors (see below), whose sum is σ = 138537000. Its totient is φ = 24476928.

The previous prime is 61382099. The next prime is 61382159. The reversal of 61382120 is 2128316.

It can be written as a sum of positive squares in 4 ways, for example, as 54081316 + 7300804 = 7354^2 + 2702^2 .

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, 11762 + ... + 16158.

Almost surely, 2^61382120 is an apocalyptic number.

It is an amenable number.

61382120 is an abundant number, since it is smaller than the sum of its proper divisors (77154880).

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

61382120 is a wasteful number, since it uses less digits than its factorization.

61382120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757 (or 4753 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 61382120 is about 7834.6742114781. The cubic root of 61382120 is about 394.4699829321.

The spelling of 61382120 in words is "sixty-one million, three hundred eighty-two thousand, one hundred twenty".