120455643 has 32 divisors (see below), whose sum is σ = 201116160. Its totient is φ = 62300160.

The previous prime is 120455617. The next prime is 120455651. The reversal of 120455643 is 346554021.

It is not a de Polignac number, because 120455643 - 2⁹ = 120455131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120455643.

It is not an unprimeable number, because it can be changed into a prime (120455443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58353 + ... + 60381.

It is an arithmetic number, because the mean of its divisors is an integer number (6284880).

Almost surely, 2^120455643 is an apocalyptic number.

120455643 is a deficient number, since it is larger than the sum of its proper divisors (80660517).

120455643 is a wasteful number, since it uses less digits than its factorization.

120455643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 120455643 is about 10975.2286080974. The cubic root of 120455643 is about 493.8659109807.

The spelling of 120455643 in words is "one hundred twenty million, four hundred fifty-five thousand, six hundred forty-three".