520167157 has 2 divisors, whose sum is σ = 520167158. Its totient is φ = 520167156.

The previous prime is 520167143. The next prime is 520167203. The reversal of 520167157 is 751761025.

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., 510488836 + 9678321 = 22594^2 + 3111^2 .

It is a cyclic number.

It is not a de Polignac number, because 520167157 - 2²³ = 511778549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520167107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260083578 + 260083579.

It is an arithmetic number, because the mean of its divisors is an integer number (260083579).

Almost surely, 2^520167157 is an apocalyptic number.

It is an amenable number.

520167157 is a deficient number, since it is larger than the sum of its proper divisors (1).

520167157 is an equidigital number, since it uses as much as digits as its factorization.

520167157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 34.

The square root of 520167157 is about 22807.1733671667. The cubic root of 520167157 is about 804.2313081861.

The spelling of 520167157 in words is "five hundred twenty million, one hundred sixty-seven thousand, one hundred fifty-seven".