122455181 has 2 divisors, whose sum is σ = 122455182. Its totient is φ = 122455180.

The previous prime is 122455169. The next prime is 122455213. The reversal of 122455181 is 181554221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90079081 + 32376100 = 9491^2 + 5690^2 .

It is a cyclic number.

It is not a de Polignac number, because 122455181 - 2⁶ = 122455117 is a prime.

It is a super-2 number, since 2×122455181² = 29990542707485522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122455141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61227590 + 61227591.

It is an arithmetic number, because the mean of its divisors is an integer number (61227591).

Almost surely, 2^122455181 is an apocalyptic number.

It is an amenable number.

122455181 is a deficient number, since it is larger than the sum of its proper divisors (1).

122455181 is an equidigital number, since it uses as much as digits as its factorization.

122455181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3200, while the sum is 29.

The square root of 122455181 is about 11065.9469093250. The cubic root of 122455181 is about 496.5836178323.

The spelling of 122455181 in words is "one hundred twenty-two million, four hundred fifty-five thousand, one hundred eighty-one".