172170230 has 16 divisors (see below), whose sum is σ = 313830720. Its totient is φ = 67996032.

The previous prime is 172170227. The next prime is 172170263. The reversal of 172170230 is 32071271.

It is a junction number, because it is equal to n+sod(n) for n = 172170196 and 172170205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108179 + ... + 109758.

It is an arithmetic number, because the mean of its divisors is an integer number (19614420).

Almost surely, 2^172170230 is an apocalyptic number.

172170230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172170230 is a deficient number, since it is larger than the sum of its proper divisors (141660490).

172170230 is a wasteful number, since it uses less digits than its factorization.

172170230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218023.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 172170230 is about 13121.3654015121. The cubic root of 172170230 is about 556.3131850962.

The spelling of 172170230 in words is "one hundred seventy-two million, one hundred seventy thousand, two hundred thirty".