172119189 has 32 divisors (see below), whose sum is σ = 267660288. Its totient is φ = 97328000.

The previous prime is 172119187. The next prime is 172119191. The reversal of 172119189 is 981911271.

It is an interprime number because it is at equal distance from previous prime (172119187) and next prime (172119191).

It is not a de Polignac number, because 172119189 - 2¹ = 172119187 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172119187) 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 31 ways as a sum of consecutive naturals, for example, 28354 + ... + 33884.

It is an arithmetic number, because the mean of its divisors is an integer number (8364384).

Almost surely, 2^172119189 is an apocalyptic number.

It is an amenable number.

172119189 is a deficient number, since it is larger than the sum of its proper divisors (95541099).

172119189 is a wasteful number, since it uses less digits than its factorization.

172119189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5609.

The product of its digits is 9072, while the sum is 39.

The square root of 172119189 is about 13119.4202996931. The cubic root of 172119189 is about 556.2582054254.

It can be divided in two parts, 1721 and 19189, that added together give a triangular number (20910 = T₂₀₄).

The spelling of 172119189 in words is "one hundred seventy-two million, one hundred nineteen thousand, one hundred eighty-nine".