168132572 has 6 divisors (see below), whose sum is σ = 294232008. Its totient is φ = 84066284.

The previous prime is 168132571. The next prime is 168132617. The reversal of 168132572 is 275231861.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168132571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21016568 + ... + 21016575.

It is an arithmetic number, because the mean of its divisors is an integer number (49038668).

Almost surely, 2^168132572 is an apocalyptic number.

It is an amenable number.

168132572 is a deficient number, since it is larger than the sum of its proper divisors (126099436).

168132572 is a wasteful number, since it uses less digits than its factorization.

168132572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42033147 (or 42033145 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 168132572 is about 12966.5944642377. The cubic root of 168132572 is about 551.9299384229.

The spelling of 168132572 in words is "one hundred sixty-eight million, one hundred thirty-two thousand, five hundred seventy-two".