120959621 has 4 divisors (see below), whose sum is σ = 123241932. Its totient is φ = 118677312.

The previous prime is 120959611. The next prime is 120959651. The reversal of 120959621 is 126959021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53949025 + 67010596 = 7345^2 + 8186^2 .

It is a cyclic number.

It is not a de Polignac number, because 120959621 - 2²⁶ = 53850757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120959611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1141076 + ... + 1141181.

It is an arithmetic number, because the mean of its divisors is an integer number (30810483).

Almost surely, 2^120959621 is an apocalyptic number.

It is an amenable number.

120959621 is a deficient number, since it is larger than the sum of its proper divisors (2282311).

120959621 is an equidigital number, since it uses as much as digits as its factorization.

120959621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282310.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 120959621 is about 10998.1644377596. The cubic root of 120959621 is about 494.5537194530.

The spelling of 120959621 in words is "one hundred twenty million, nine hundred fifty-nine thousand, six hundred twenty-one".