122136269 has 2 divisors, whose sum is σ = 122136270. Its totient is φ = 122136268.

The previous prime is 122136263. The next prime is 122136271. The reversal of 122136269 is 962631221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119028100 + 3108169 = 10910^2 + 1763^2 .

It is an emirp because it is prime and its reverse (962631221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122136269 - 2¹² = 122132173 is a prime.

It is a super-2 number, since 2×122136269² = 29834536410480722, which contains 22 as substring.

Together with 122136271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122136263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61068134 + 61068135.

It is an arithmetic number, because the mean of its divisors is an integer number (61068135).

Almost surely, 2^122136269 is an apocalyptic number.

It is an amenable number.

122136269 is a deficient number, since it is larger than the sum of its proper divisors (1).

122136269 is an equidigital number, since it uses as much as digits as its factorization.

122136269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 122136269 is about 11051.5279034168. The cubic root of 122136269 is about 496.1521561566.

The spelling of 122136269 in words is "one hundred twenty-two million, one hundred thirty-six thousand, two hundred sixty-nine".