422555137 has 2 divisors, whose sum is σ = 422555138. Its totient is φ = 422555136.

The previous prime is 422555123. The next prime is 422555173. The reversal of 422555137 is 731555224.

Together with next prime (422555173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224280576 + 198274561 = 14976^2 + 14081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422555137 is a prime.

It is not a weakly prime, because it can be changed into another prime (422555537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211277568 + 211277569.

It is an arithmetic number, because the mean of its divisors is an integer number (211277569).

Almost surely, 2^422555137 is an apocalyptic number.

It is an amenable number.

422555137 is a deficient number, since it is larger than the sum of its proper divisors (1).

422555137 is an equidigital number, since it uses as much as digits as its factorization.

422555137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42000, while the sum is 34.

The square root of 422555137 is about 20556.1459665960. The cubic root of 422555137 is about 750.4028277492.

The spelling of 422555137 in words is "four hundred twenty-two million, five hundred fifty-five thousand, one hundred thirty-seven".