172351425 has 12 divisors (see below), whose sum is σ = 284954480. Its totient is φ = 91920720.

The previous prime is 172351411. The next prime is 172351433. The reversal of 172351425 is 524153271.

It is not a de Polignac number, because 172351425 - 2¹³ = 172343233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172351392 and 172351401.

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, 1148935 + ... + 1149084.

Almost surely, 2^172351425 is an apocalyptic number.

172351425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172351425 is a deficient number, since it is larger than the sum of its proper divisors (112603055).

172351425 is a wasteful number, since it uses less digits than its factorization.

172351425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298032 (or 2298027 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 172351425 is about 13128.2681645372. The cubic root of 172351425 is about 556.5082746239.

The spelling of 172351425 in words is "one hundred seventy-two million, three hundred fifty-one thousand, four hundred twenty-five".