172224475 has 24 divisors (see below), whose sum is σ = 222642000. Its totient is φ = 131994240.

The previous prime is 172224457. The next prime is 172224491. The reversal of 172224475 is 574422271.

It is not a de Polignac number, because 172224475 - 2⁵ = 172224443 is a prime.

It is a super-2 number, since 2×172224475² = 59322539578051250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 172224475.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99921 + ... + 101629.

It is an arithmetic number, because the mean of its divisors is an integer number (9276750).

Almost surely, 2^172224475 is an apocalyptic number.

172224475 is a deficient number, since it is larger than the sum of its proper divisors (50417525).

172224475 is a wasteful number, since it uses less digits than its factorization.

172224475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887 (or 1882 counting only the distinct ones).

The product of its digits is 31360, while the sum is 34.

The square root of 172224475 is about 13123.4322873248. The cubic root of 172224475 is about 556.3716041001.

The spelling of 172224475 in words is "one hundred seventy-two million, two hundred twenty-four thousand, four hundred seventy-five".