122495621 has 2 divisors, whose sum is σ = 122495622. Its totient is φ = 122495620.

The previous prime is 122495599. The next prime is 122495707. The reversal of 122495621 is 126594221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80102500 + 42393121 = 8950^2 + 6511^2 .

It is a cyclic number.

It is not a de Polignac number, because 122495621 - 2¹⁰ = 122494597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122495921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61247810 + 61247811.

It is an arithmetic number, because the mean of its divisors is an integer number (61247811).

Almost surely, 2^122495621 is an apocalyptic number.

It is an amenable number.

122495621 is a deficient number, since it is larger than the sum of its proper divisors (1).

122495621 is an equidigital number, since it uses as much as digits as its factorization.

122495621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 122495621 is about 11067.7739857661. The cubic root of 122495621 is about 496.6382762826.

The spelling of 122495621 in words is "one hundred twenty-two million, four hundred ninety-five thousand, six hundred twenty-one".