522143316 has 18 divisors (see below), whose sum is σ = 1319862362. Its totient is φ = 174047760.

The previous prime is 522143299. The next prime is 522143329. The reversal of 522143316 is 613341225.

522143316 is a `hidden beast` number, since 5 + 221 + 433 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 454968900 + 67174416 = 21330^2 + 8196^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×522143316³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 522143316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7251955 + ... + 7252026.

Almost surely, 2^522143316 is an apocalyptic number.

It is an amenable number.

522143316 is an abundant number, since it is smaller than the sum of its proper divisors (797719046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

522143316 is a wasteful number, since it uses less digits than its factorization.

522143316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14503991 (or 14503986 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 522143316 is about 22850.4554878016. The cubic root of 522143316 is about 805.2484687527.

The spelling of 522143316 in words is "five hundred twenty-two million, one hundred forty-three thousand, three hundred sixteen".