122310161 has 2 divisors, whose sum is σ = 122310162. Its totient is φ = 122310160.

The previous prime is 122310157. The next prime is 122310169. The reversal of 122310161 is 161013221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79995136 + 42315025 = 8944^2 + 6505^2 .

It is a cyclic number.

It is not a de Polignac number, because 122310161 - 2² = 122310157 is a prime.

It is not a weakly prime, because it can be changed into another prime (122310169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61155080 + 61155081.

It is an arithmetic number, because the mean of its divisors is an integer number (61155081).

Almost surely, 2^122310161 is an apocalyptic number.

It is an amenable number.

122310161 is a deficient number, since it is larger than the sum of its proper divisors (1).

122310161 is an equidigital number, since it uses as much as digits as its factorization.

122310161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 122310161 is about 11059.3924335833. The cubic root of 122310161 is about 496.3875106998.

Adding to 122310161 its reverse (161013221), we get a palindrome (283323382).

The spelling of 122310161 in words is "one hundred twenty-two million, three hundred ten thousand, one hundred sixty-one".