122536231 has 2 divisors, whose sum is σ = 122536232. Its totient is φ = 122536230.

The previous prime is 122536229. The next prime is 122536237. The reversal of 122536231 is 132635221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122536231 - 2¹ = 122536229 is a prime.

It is a super-2 number, since 2×122536231² = 30030255815370722, which contains 22 as substring.

Together with 122536229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 122536196 and 122536205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122536237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61268115 + 61268116.

It is an arithmetic number, because the mean of its divisors is an integer number (61268116).

Almost surely, 2^122536231 is an apocalyptic number.

122536231 is a deficient number, since it is larger than the sum of its proper divisors (1).

122536231 is an equidigital number, since it uses as much as digits as its factorization.

122536231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 122536231 is about 11069.6084393261. The cubic root of 122536231 is about 496.6931523995.

The spelling of 122536231 in words is "one hundred twenty-two million, five hundred thirty-six thousand, two hundred thirty-one".