172166912 has 36 divisors (see below), whose sum is σ = 348052320. Its totient is φ = 84983808.

The previous prime is 172166887. The next prime is 172166933. The reversal of 172166912 is 219661271.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15968 + ... + 24480.

It is an arithmetic number, because the mean of its divisors is an integer number (9668120).

Almost surely, 2^172166912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172166912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174026160).

172166912 is an abundant number, since it is smaller than the sum of its proper divisors (175885408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172166912 is an frugal number, since it uses more digits than its factorization.

172166912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8608 (or 8594 counting only the distinct ones).

The product of its digits is 9072, while the sum is 35.

The square root of 172166912 is about 13121.2389658904. The cubic root of 172166912 is about 556.3096113870.

The spelling of 172166912 in words is "one hundred seventy-two million, one hundred sixty-six thousand, nine hundred twelve".