172170352 has 10 divisors (see below), whose sum is σ = 333580088. Its totient is φ = 86085168.

The previous prime is 172170347. The next prime is 172170367. The reversal of 172170352 is 253071271.

It is a self number, because there is not a number n which added to its sum of digits gives 172170352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5380308 + ... + 5380339.

Almost surely, 2^172170352 is an apocalyptic number.

It is an amenable number.

172170352 is a deficient number, since it is larger than the sum of its proper divisors (161409736).

172170352 is a wasteful number, since it uses less digits than its factorization.

172170352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10760655 (or 10760649 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 172170352 is about 13121.3700504178. The cubic root of 172170352 is about 556.3133164975.

The spelling of 172170352 in words is "one hundred seventy-two million, one hundred seventy thousand, three hundred fifty-two".