190986117 has 16 divisors (see below), whose sum is σ = 291244032. Its totient is φ = 109053360.

The previous prime is 190986101. The next prime is 190986121. The reversal of 190986117 is 711689091.

190986117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 190986117 - 2⁴ = 190986101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190986137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35968 + ... + 40934.

It is an arithmetic number, because the mean of its divisors is an integer number (18202752).

Almost surely, 2^190986117 is an apocalyptic number.

It is an amenable number.

190986117 is a deficient number, since it is larger than the sum of its proper divisors (100257915).

190986117 is a wasteful number, since it uses less digits than its factorization.

190986117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6808.

The product of its (nonzero) digits is 27216, while the sum is 42.

The square root of 190986117 is about 13819.7726826457. The cubic root of 190986117 is about 575.8825685324.

The spelling of 190986117 in words is "one hundred ninety million, nine hundred eighty-six thousand, one hundred seventeen".