120661158 has 16 divisors (see below), whose sum is σ = 242102016. Its totient is φ = 40090440.

The previous prime is 120661133. The next prime is 120661193. The reversal of 120661158 is 851166021.

It is a Curzon number.

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, 30466 + ... + 34197.

It is an arithmetic number, because the mean of its divisors is an integer number (15131376).

Almost surely, 2^120661158 is an apocalyptic number.

120661158 is an abundant number, since it is smaller than the sum of its proper divisors (121440858).

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

120661158 is a wasteful number, since it uses less digits than its factorization.

120661158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64979.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 120661158 is about 10984.5872931121. The cubic root of 120661158 is about 494.1466206316.

The spelling of 120661158 in words is "one hundred twenty million, six hundred sixty-one thousand, one hundred fifty-eight".