172119372 has 12 divisors (see below), whose sum is σ = 401611896. Its totient is φ = 57373120.

The previous prime is 172119371. The next prime is 172119383. The reversal of 172119372 is 273911271.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (172119371) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 7171629 + ... + 7171652.

It is an arithmetic number, because the mean of its divisors is an integer number (33467658).

Almost surely, 2^172119372 is an apocalyptic number.

172119372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172119372 is an abundant number, since it is smaller than the sum of its proper divisors (229492524).

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

172119372 is a wasteful number, since it uses less digits than its factorization.

172119372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14343288 (or 14343286 counting only the distinct ones).

The product of its digits is 5292, while the sum is 33.

The square root of 172119372 is about 13119.4272740848. The cubic root of 172119372 is about 556.2584025663.

The spelling of 172119372 in words is "one hundred seventy-two million, one hundred nineteen thousand, three hundred seventy-two".