120253621 has 2 divisors, whose sum is σ = 120253622. Its totient is φ = 120253620.

The previous prime is 120253613. The next prime is 120253657. The reversal of 120253621 is 126352021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118592100 + 1661521 = 10890^2 + 1289^2 .

It is a cyclic number.

It is not a de Polignac number, because 120253621 - 2³ = 120253613 is a prime.

It is a super-2 number, since 2×120253621² = 28921866727223282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120253592 and 120253601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120253321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60126810 + 60126811.

It is an arithmetic number, because the mean of its divisors is an integer number (60126811).

Almost surely, 2^120253621 is an apocalyptic number.

It is an amenable number.

120253621 is a deficient number, since it is larger than the sum of its proper divisors (1).

120253621 is an equidigital number, since it uses as much as digits as its factorization.

120253621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 120253621 is about 10966.0212018763. The cubic root of 120253621 is about 493.5896609964.

The spelling of 120253621 in words is "one hundred twenty million, two hundred fifty-three thousand, six hundred twenty-one".