120788681 has 16 divisors (see below), whose sum is σ = 138008640. Its totient is φ = 104794560.

The previous prime is 120788671. The next prime is 120788687. The reversal of 120788681 is 186887021.

It is not a de Polignac number, because 120788681 - 2²² = 116594377 is a prime.

It is a super-2 number, since 2×120788681² = 29179810915439522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120788687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30491 + ... + 34223.

It is an arithmetic number, because the mean of its divisors is an integer number (8625540).

Almost surely, 2^120788681 is an apocalyptic number.

It is an amenable number.

120788681 is a deficient number, since it is larger than the sum of its proper divisors (17219959).

120788681 is a wasteful number, since it uses less digits than its factorization.

120788681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3896.

The product of its (nonzero) digits is 43008, while the sum is 41.

The square root of 120788681 is about 10990.3903934301. The cubic root of 120788681 is about 494.3206420373.

The spelling of 120788681 in words is "one hundred twenty million, seven hundred eighty-eight thousand, six hundred eighty-one".