120431986 has 8 divisors (see below), whose sum is σ = 180950364. Its totient is φ = 60115200.

The previous prime is 120431977. The next prime is 120432007. The reversal of 120431986 is 689134021.

It can be written as a sum of positive squares in 2 ways, for example, as 106481761 + 13950225 = 10319^2 + 3735^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48895 + ... + 51298.

Almost surely, 2^120431986 is an apocalyptic number.

120431986 is a deficient number, since it is larger than the sum of its proper divisors (60518378).

120431986 is a wasteful number, since it uses less digits than its factorization.

120431986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100796.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 120431986 is about 10974.1508099716. The cubic root of 120431986 is about 493.8335777762.

The spelling of 120431986 in words is "one hundred twenty million, four hundred thirty-one thousand, nine hundred eighty-six".