190856 has 8 divisors (see below), whose sum is σ = 357870. Its totient is φ = 95424.

The previous prime is 190843. The next prime is 190871. The reversal of 190856 is 658091.

It can be written as a sum of positive squares in only one way, i.e., 188356 + 2500 = 434^2 + 50^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

190856 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11921 + ... + 11936.

2¹⁹⁰⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

190856 is a deficient number, since it is larger than the sum of its proper divisors (167014).

190856 is a wasteful number, since it uses less digits than its factorization.

190856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23863 (or 23859 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 190856 is about 436.8706902506. The cubic root of 190856 is about 57.5751757741.

It can be divided in two parts, 19085 and 6, that added together give a palindrome (19091).

The spelling of 190856 in words is "one hundred ninety thousand, eight hundred fifty-six".