122936189 has 2 divisors, whose sum is σ = 122936190. Its totient is φ = 122936188.

The previous prime is 122936171. The next prime is 122936221. The reversal of 122936189 is 981639221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117896164 + 5040025 = 10858^2 + 2245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122936189 is a prime.

It is a super-2 number, since 2×122936189² = 30226613131687442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122936389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61468094 + 61468095.

It is an arithmetic number, because the mean of its divisors is an integer number (61468095).

Almost surely, 2^122936189 is an apocalyptic number.

It is an amenable number.

122936189 is a deficient number, since it is larger than the sum of its proper divisors (1).

122936189 is an equidigital number, since it uses as much as digits as its factorization.

122936189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 122936189 is about 11087.6593111441. The cubic root of 122936189 is about 497.2329673078.

The spelling of 122936189 in words is "one hundred twenty-two million, nine hundred thirty-six thousand, one hundred eighty-nine".