120109977 has 12 divisors (see below), whose sum is σ = 186837924. Its totient is φ = 73913760.

The previous prime is 120109931. The next prime is 120109991. The reversal of 120109977 is 779901021.

It can be written as a sum of positive squares in 2 ways, for example, as 13111641 + 106998336 = 3621^2 + 10344^2 .

It is not a de Polignac number, because 120109977 - 2¹⁹ = 119585689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120109177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 513174 + ... + 513407.

It is an arithmetic number, because the mean of its divisors is an integer number (15569827).

Almost surely, 2^120109977 is an apocalyptic number.

It is an amenable number.

120109977 is a deficient number, since it is larger than the sum of its proper divisors (66727947).

120109977 is a wasteful number, since it uses less digits than its factorization.

120109977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026600 (or 1026597 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 120109977 is about 10959.4697408223. The cubic root of 120109977 is about 493.3930503050.

The spelling of 120109977 in words is "one hundred twenty million, one hundred nine thousand, nine hundred seventy-seven".