190287 has 6 divisors (see below), whose sum is σ = 274872. Its totient is φ = 126852.

The previous prime is 190283. The next prime is 190297. The reversal of 190287 is 782091.

It is not a de Polignac number, because 190287 - 2² = 190283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190287.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 190287.

It is not an unprimeable number, because it can be changed into a prime (190283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10563 + ... + 10580.

It is an arithmetic number, because the mean of its divisors is an integer number (45812).

2¹⁹⁰²⁸⁷ is an apocalyptic number.

190287 is a deficient number, since it is larger than the sum of its proper divisors (84585).

190287 is a wasteful number, since it uses less digits than its factorization.

190287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21149 (or 21146 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 190287 is about 436.2189817053. The cubic root of 190287 is about 57.5179024281.

The spelling of 190287 in words is "one hundred ninety thousand, two hundred eighty-seven".