522161204 has 12 divisors (see below), whose sum is σ = 917575428. Its totient is φ = 259996800.

The previous prime is 522161197. The next prime is 522161219. The reversal of 522161204 is 402161225.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 355699600 + 166461604 = 18860^2 + 12902^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 522161204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269867 + ... + 271794.

It is an arithmetic number, because the mean of its divisors is an integer number (76464619).

Almost surely, 2^522161204 is an apocalyptic number.

It is an amenable number.

522161204 is a deficient number, since it is larger than the sum of its proper divisors (395414224).

522161204 is a wasteful number, since it uses less digits than its factorization.

522161204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541906 (or 541904 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 522161204 is about 22850.8468989663. The cubic root of 522161204 is about 805.2576642614.

The spelling of 522161204 in words is "five hundred twenty-two million, one hundred sixty-one thousand, two hundred four".