120628643 has 4 divisors (see below), whose sum is σ = 121823088. Its totient is φ = 119434200.

The previous prime is 120628633. The next prime is 120628679. The reversal of 120628643 is 346826021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120628643 - 2⁶ = 120628579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120628633) 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 3 ways as a sum of consecutive naturals, for example, 597071 + ... + 597272.

It is an arithmetic number, because the mean of its divisors is an integer number (30455772).

Almost surely, 2^120628643 is an apocalyptic number.

120628643 is a deficient number, since it is larger than the sum of its proper divisors (1194445).

120628643 is a wasteful number, since it uses less digits than its factorization.

120628643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194444.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 120628643 is about 10983.1071650968. The cubic root of 120628643 is about 494.1022301498.

The spelling of 120628643 in words is "one hundred twenty million, six hundred twenty-eight thousand, six hundred forty-three".