122644481 has 2 divisors, whose sum is σ = 122644482. Its totient is φ = 122644480.

The previous prime is 122644397. The next prime is 122644499. The reversal of 122644481 is 184446221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63600625 + 59043856 = 7975^2 + 7684^2 .

It is a cyclic number.

It is not a de Polignac number, because 122644481 - 2¹⁴ = 122628097 is a prime.

It is a super-2 number, since 2×122644481² = 30083337439518722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (122640481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61322240 + 61322241.

It is an arithmetic number, because the mean of its divisors is an integer number (61322241).

Almost surely, 2^122644481 is an apocalyptic number.

It is an amenable number.

122644481 is a deficient number, since it is larger than the sum of its proper divisors (1).

122644481 is an equidigital number, since it uses as much as digits as its factorization.

122644481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 32.

The square root of 122644481 is about 11074.4968734476. The cubic root of 122644481 is about 496.8393709458.

The spelling of 122644481 in words is "one hundred twenty-two million, six hundred forty-four thousand, four hundred eighty-one".