522206137 has 2 divisors, whose sum is σ = 522206138. Its totient is φ = 522206136.

The previous prime is 522206077. The next prime is 522206159. The reversal of 522206137 is 731602225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 392792761 + 129413376 = 19819^2 + 11376^2 .

It is a cyclic number.

It is not a de Polignac number, because 522206137 - 2²⁷ = 387988409 is a prime.

It is not a weakly prime, because it can be changed into another prime (522206837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261103068 + 261103069.

It is an arithmetic number, because the mean of its divisors is an integer number (261103069).

Almost surely, 2^522206137 is an apocalyptic number.

It is an amenable number.

522206137 is a deficient number, since it is larger than the sum of its proper divisors (1).

522206137 is an equidigital number, since it uses as much as digits as its factorization.

522206137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 522206137 is about 22851.8300580063. The cubic root of 522206137 is about 805.2807616015.

The spelling of 522206137 in words is "five hundred twenty-two million, two hundred six thousand, one hundred thirty-seven".