172142475 has 12 divisors (see below), whose sum is σ = 284609016. Its totient is φ = 91809280.

The previous prime is 172142461. The next prime is 172142519. The reversal of 172142475 is 574241271.

172142475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172142475 - 2¹⁴ = 172126091 is a prime.

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, 1147542 + ... + 1147691.

It is an arithmetic number, because the mean of its divisors is an integer number (23717418).

Almost surely, 2^172142475 is an apocalyptic number.

172142475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

172142475 is a deficient number, since it is larger than the sum of its proper divisors (112466541).

172142475 is a wasteful number, since it uses less digits than its factorization.

172142475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295246 (or 2295241 counting only the distinct ones).

The product of its digits is 15680, while the sum is 33.

The square root of 172142475 is about 13120.3077326715. The cubic root of 172142475 is about 556.2832896796.

The spelling of 172142475 in words is "one hundred seventy-two million, one hundred forty-two thousand, four hundred seventy-five".