522163231 has 2 divisors, whose sum is σ = 522163232. Its totient is φ = 522163230.

The previous prime is 522163207. The next prime is 522163259. The reversal of 522163231 is 132361225.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-522163231 is a prime.

It is a super-2 number, since 2×522163231² = 545308879616718722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 522163196 and 522163205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (522163931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261081615 + 261081616.

It is an arithmetic number, because the mean of its divisors is an integer number (261081616).

Almost surely, 2^522163231 is an apocalyptic number.

522163231 is a deficient number, since it is larger than the sum of its proper divisors (1).

522163231 is an equidigital number, since it uses as much as digits as its factorization.

522163231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 522163231 is about 22850.8912517652. The cubic root of 522163231 is about 805.2587062481.

The spelling of 522163231 in words is "five hundred twenty-two million, one hundred sixty-three thousand, two hundred thirty-one".