172245568 has 28 divisors (see below), whose sum is σ = 372874032. Its totient is φ = 78293120.

The previous prime is 172245539. The next prime is 172245589. The reversal of 172245568 is 865542271.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 172245568.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121630 + ... + 123037.

Almost surely, 2^172245568 is an apocalyptic number.

It is an amenable number.

172245568 is an abundant number, since it is smaller than the sum of its proper divisors (200628464).

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

172245568 is a wasteful number, since it uses less digits than its factorization.

172245568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244690 (or 244680 counting only the distinct ones).

The product of its digits is 134400, while the sum is 40.

The square root of 172245568 is about 13124.2359015678. The cubic root of 172245568 is about 556.3943168362.

The spelling of 172245568 in words is "one hundred seventy-two million, two hundred forty-five thousand, five hundred sixty-eight".