120563621 has 2 divisors, whose sum is σ = 120563622. Its totient is φ = 120563620.

The previous prime is 120563603. The next prime is 120563627. The reversal of 120563621 is 126365021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118048225 + 2515396 = 10865^2 + 1586^2 .

It is a cyclic number.

It is not a de Polignac number, because 120563621 - 2¹⁰ = 120562597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120563627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60281810 + 60281811.

It is an arithmetic number, because the mean of its divisors is an integer number (60281811).

Almost surely, 2^120563621 is an apocalyptic number.

It is an amenable number.

120563621 is a deficient number, since it is larger than the sum of its proper divisors (1).

120563621 is an equidigital number, since it uses as much as digits as its factorization.

120563621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 120563621 is about 10980.1466747945. The cubic root of 120563621 is about 494.0134361767.

The spelling of 120563621 in words is "one hundred twenty million, five hundred sixty-three thousand, six hundred twenty-one".