172168475 has 6 divisors (see below), whose sum is σ = 213488940. Its totient is φ = 137734760.

The previous prime is 172168463. The next prime is 172168499. The reversal of 172168475 is 574861271.

It is not a de Polignac number, because 172168475 - 2⁴ = 172168459 is a prime.

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, 3443345 + ... + 3443394.

It is an arithmetic number, because the mean of its divisors is an integer number (35581490).

Almost surely, 2^172168475 is an apocalyptic number.

172168475 is a deficient number, since it is larger than the sum of its proper divisors (41320465).

172168475 is an equidigital number, since it uses as much as digits as its factorization.

172168475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886749 (or 6886744 counting only the distinct ones).

The product of its digits is 94080, while the sum is 41.

The square root of 172168475 is about 13121.2985256795. The cubic root of 172168475 is about 556.3112948488.

The spelling of 172168475 in words is "one hundred seventy-two million, one hundred sixty-eight thousand, four hundred seventy-five".