172224575 has 12 divisors (see below), whose sum is σ = 222844368. Its totient is φ = 131788800.

The previous prime is 172224553. The next prime is 172224581. The reversal of 172224575 is 575422271.

It is not a de Polignac number, because 172224575 - 2¹⁰ = 172223551 is a prime.

It is a super-2 number, since 2×172224575² = 59322608467861250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149186 + ... + 150335.

It is an arithmetic number, because the mean of its divisors is an integer number (18570364).

Almost surely, 2^172224575 is an apocalyptic number.

172224575 is a deficient number, since it is larger than the sum of its proper divisors (50619793).

172224575 is a wasteful number, since it uses less digits than its factorization.

172224575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299554 (or 299549 counting only the distinct ones).

The product of its digits is 39200, while the sum is 35.

The square root of 172224575 is about 13123.4360973032. The cubic root of 172224575 is about 556.3717117834.

The spelling of 172224575 in words is "one hundred seventy-two million, two hundred twenty-four thousand, five hundred seventy-five".