168313522 has 12 divisors (see below), whose sum is σ = 273385530. Its totient is φ = 77683008.

The previous prime is 168313499. The next prime is 168313543. The reversal of 168313522 is 225313861.

168313522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 66928761 + 101384761 = 8181^2 + 10069^2 .

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, 248647 + ... + 249322.

Almost surely, 2^168313522 is an apocalyptic number.

168313522 is a deficient number, since it is larger than the sum of its proper divisors (105072008).

168313522 is a wasteful number, since it uses less digits than its factorization.

168313522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497997 (or 497984 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 168313522 is about 12973.5701331592. The cubic root of 168313522 is about 552.1278693654.

The spelling of 168313522 in words is "one hundred sixty-eight million, three hundred thirteen thousand, five hundred twenty-two".