122404889 has 2 divisors, whose sum is σ = 122404890. Its totient is φ = 122404888.

The previous prime is 122404883. The next prime is 122404901. The reversal of 122404889 is 988404221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75550864 + 46854025 = 8692^2 + 6845^2 .

It is a cyclic number.

It is not a de Polignac number, because 122404889 - 2²⁴ = 105627673 is a prime.

It is a super-2 number, since 2×122404889² = 29965913702204642, which contains 22 as substring.

It is equal to p_6970727 and since 122404889 and 6970727 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (122404883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61202444 + 61202445.

It is an arithmetic number, because the mean of its divisors is an integer number (61202445).

Almost surely, 2^122404889 is an apocalyptic number.

It is an amenable number.

122404889 is a deficient number, since it is larger than the sum of its proper divisors (1).

122404889 is an equidigital number, since it uses as much as digits as its factorization.

122404889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 122404889 is about 11063.6742992552. The cubic root of 122404889 is about 496.5156266896.

The spelling of 122404889 in words is "one hundred twenty-two million, four hundred four thousand, eight hundred eighty-nine".