172451425 has 12 divisors (see below), whose sum is σ = 214312176. Its totient is φ = 137656400.

The previous prime is 172451399. The next prime is 172451441. The reversal of 172451425 is 524154271.

It is not a de Polignac number, because 172451425 - 2⁵ = 172451393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4290 + ... + 19060.

It is an arithmetic number, because the mean of its divisors is an integer number (17859348).

Almost surely, 2^172451425 is an apocalyptic number.

It is an amenable number.

172451425 is a deficient number, since it is larger than the sum of its proper divisors (41860751).

172451425 is a wasteful number, since it uses less digits than its factorization.

172451425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15248 (or 15243 counting only the distinct ones).

The product of its digits is 11200, while the sum is 31.

The square root of 172451425 is about 13132.0761877169. The cubic root of 172451425 is about 556.6158843480.

The spelling of 172451425 in words is "one hundred seventy-two million, four hundred fifty-one thousand, four hundred twenty-five".