190812 has 12 divisors (see below), whose sum is σ = 445256. Its totient is φ = 63600.

The previous prime is 190811. The next prime is 190823. The reversal of 190812 is 218091.

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

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7939 + ... + 7962.

2¹⁹⁰⁸¹² is an apocalyptic number.

190812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

190812 is an abundant number, since it is smaller than the sum of its proper divisors (254444).

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

190812 is a wasteful number, since it uses less digits than its factorization.

190812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15908 (or 15906 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 190812 is about 436.8203291973. The cubic root of 190812 is about 57.5707509679.

The spelling of 190812 in words is "one hundred ninety thousand, eight hundred twelve".