423207137 has 2 divisors, whose sum is σ = 423207138. Its totient is φ = 423207136.

The previous prime is 423207101. The next prime is 423207181. The reversal of 423207137 is 731702324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 419061841 + 4145296 = 20471^2 + 2036^2 .

It is a cyclic number.

It is not a de Polignac number, because 423207137 - 2¹⁶ = 423141601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (423200137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211603568 + 211603569.

It is an arithmetic number, because the mean of its divisors is an integer number (211603569).

Almost surely, 2^423207137 is an apocalyptic number.

It is an amenable number.

423207137 is a deficient number, since it is larger than the sum of its proper divisors (1).

423207137 is an equidigital number, since it uses as much as digits as its factorization.

423207137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 423207137 is about 20571.9988576706. The cubic root of 423207137 is about 750.7885850727.

The spelling of 423207137 in words is "four hundred twenty-three million, two hundred seven thousand, one hundred thirty-seven".