122255137 has 2 divisors, whose sum is σ = 122255138. Its totient is φ = 122255136.

The previous prime is 122255093. The next prime is 122255173. The reversal of 122255137 is 731552221.

Together with next prime (122255173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101425041 + 20830096 = 10071^2 + 4564^2 .

It is an emirp because it is prime and its reverse (731552221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122255137 - 2⁷ = 122255009 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (122255197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61127568 + 61127569.

It is an arithmetic number, because the mean of its divisors is an integer number (61127569).

Almost surely, 2^122255137 is an apocalyptic number.

It is an amenable number.

122255137 is a deficient number, since it is larger than the sum of its proper divisors (1).

122255137 is an equidigital number, since it uses as much as digits as its factorization.

122255137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 28.

The square root of 122255137 is about 11056.9044944776. The cubic root of 122255137 is about 496.3130624746.

The spelling of 122255137 in words is "one hundred twenty-two million, two hundred fifty-five thousand, one hundred thirty-seven".