120992643 has 16 divisors (see below), whose sum is σ = 179481600. Its totient is φ = 80556840.

The previous prime is 120992633. The next prime is 120992653. The reversal of 120992643 is 346299021.

120992643 is a `hidden beast` number, since 1 + 2 + 0 + 9 + 9 + 2 + 643 = 666.

It is an interprime number because it is at equal distance from previous prime (120992633) and next prime (120992653).

It is not a de Polignac number, because 120992643 - 2⁸ = 120992387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120992598 and 120992607.

It is not an unprimeable number, because it can be changed into a prime (120992623) 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, 22138 + ... + 27056.

It is an arithmetic number, because the mean of its divisors is an integer number (11217600).

Almost surely, 2^120992643 is an apocalyptic number.

120992643 is a deficient number, since it is larger than the sum of its proper divisors (58488957).

120992643 is an equidigital number, since it uses as much as digits as its factorization.

120992643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5839 (or 5833 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 120992643 is about 10999.6655858258. The cubic root of 120992643 is about 494.5987197786.

The spelling of 120992643 in words is "one hundred twenty million, nine hundred ninety-two thousand, six hundred forty-three".