120561104 has 10 divisors (see below), whose sum is σ = 233587170. Its totient is φ = 60280544.

The previous prime is 120561079. The next prime is 120561143. The reversal of 120561104 is 401165021.

It can be written as a sum of positive squares in only one way, i.e., 117505600 + 3055504 = 10840^2 + 1748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3767519 + ... + 3767550.

It is an arithmetic number, because the mean of its divisors is an integer number (23358717).

Almost surely, 2^120561104 is an apocalyptic number.

It is an amenable number.

120561104 is a deficient number, since it is larger than the sum of its proper divisors (113026066).

120561104 is an equidigital number, since it uses as much as digits as its factorization.

120561104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7535077 (or 7535071 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 120561104 is about 10980.0320582410. The cubic root of 120561104 is about 494.0099983224.

The spelling of 120561104 in words is "one hundred twenty million, five hundred sixty-one thousand, one hundred four".