426555137 has 2 divisors, whose sum is σ = 426555138. Its totient is φ = 426555136.

The previous prime is 426555131. The next prime is 426555163. The reversal of 426555137 is 731555624.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384512881 + 42042256 = 19609^2 + 6484^2 .

It is a cyclic number.

It is not a de Polignac number, because 426555137 - 2⁴ = 426555121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 426555137.

It is not a weakly prime, because it can be changed into another prime (426555131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213277568 + 213277569.

It is an arithmetic number, because the mean of its divisors is an integer number (213277569).

Almost surely, 2^426555137 is an apocalyptic number.

It is an amenable number.

426555137 is a deficient number, since it is larger than the sum of its proper divisors (1).

426555137 is an equidigital number, since it uses as much as digits as its factorization.

426555137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126000, while the sum is 38.

The square root of 426555137 is about 20653.2112999407. The cubic root of 426555137 is about 752.7632214918.

The spelling of 426555137 in words is "four hundred twenty-six million, five hundred fifty-five thousand, one hundred thirty-seven".