190172 has 6 divisors (see below), whose sum is σ = 332808. Its totient is φ = 95084.

The previous prime is 190159. The next prime is 190181. The reversal of 190172 is 271091.

It is a d-powerful number, because it can be written as 1 + 9⁵ + 1 + 0 + 7² + 2¹⁷ .

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, 23768 + ... + 23775.

It is an arithmetic number, because the mean of its divisors is an integer number (55468).

2¹⁹⁰¹⁷² is an apocalyptic number.

It is an amenable number.

190172 is a deficient number, since it is larger than the sum of its proper divisors (142636).

190172 is a wasteful number, since it uses less digits than its factorization.

190172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47547 (or 47545 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 190172 is about 436.0871472538. The cubic root of 190172 is about 57.5063131065.

The spelling of 190172 in words is "one hundred ninety thousand, one hundred seventy-two".