190995172 has 12 divisors (see below), whose sum is σ = 334346236. Its totient is φ = 95467680.

The previous prime is 190995149. The next prime is 190995191. The reversal of 190995172 is 271599091.

190995172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 106832896 + 84162276 = 10336^2 + 9174^2 .

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, 13318 + ... + 23650.

Almost surely, 2^190995172 is an apocalyptic number.

It is an amenable number.

190995172 is a deficient number, since it is larger than the sum of its proper divisors (143351064).

190995172 is a wasteful number, since it uses less digits than its factorization.

190995172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14958 (or 14956 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 43.

The square root of 190995172 is about 13820.1002890717. The cubic root of 190995172 is about 575.8916696028.

The spelling of 190995172 in words is "one hundred ninety million, nine hundred ninety-five thousand, one hundred seventy-two".