190855 has 24 divisors (see below), whose sum is σ = 287280. Its totient is φ = 120960.

The previous prime is 190843. The next prime is 190871. The reversal of 190855 is 558091.

It is not a de Polignac number, because 190855 - 2⁵ = 190823 is a prime.

190855 is a modest number, since divided by 855 gives 190 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4635 + ... + 4675.

It is an arithmetic number, because the mean of its divisors is an integer number (11970).

2¹⁹⁰⁸⁵⁵ is an apocalyptic number.

190855 is a deficient number, since it is larger than the sum of its proper divisors (96425).

190855 is a wasteful number, since it uses less digits than its factorization.

190855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 190855 is about 436.8695457456. The cubic root of 190855 is about 57.5750752179.

Subtracting 190855 from its reverse (558091), we obtain a square (367236 = 606²).

The spelling of 190855 in words is "one hundred ninety thousand, eight hundred fifty-five".