120609931 has 8 divisors (see below), whose sum is σ = 130183200. Its totient is φ = 111078912.

The previous prime is 120609911. The next prime is 120609961. The reversal of 120609931 is 139906021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120609931 - 2¹⁷ = 120478859 is a prime.

It is a super-2 number, since 2×120609931² = 29093510911649522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120609893 and 120609902.

It is not an unprimeable number, because it can be changed into a prime (120609911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4495 + ... + 16168.

It is an arithmetic number, because the mean of its divisors is an integer number (16272900).

Almost surely, 2^120609931 is an apocalyptic number.

120609931 is a deficient number, since it is larger than the sum of its proper divisors (9573269).

120609931 is a wasteful number, since it uses less digits than its factorization.

120609931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21125.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 120609931 is about 10982.2552784025. The cubic root of 120609931 is about 494.0766803335.

The spelling of 120609931 in words is "one hundred twenty million, six hundred nine thousand, nine hundred thirty-one".