190953117 has 12 divisors (see below), whose sum is σ = 281026044. Its totient is φ = 124899840.

The previous prime is 190953109. The next prime is 190953121. The reversal of 190953117 is 711359091.

It can be written as a sum of positive squares in 2 ways, for example, as 110061081 + 80892036 = 10491^2 + 8994^2 .

It is not a de Polignac number, because 190953117 - 2³ = 190953109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190953137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199684 + ... + 200637.

It is an arithmetic number, because the mean of its divisors is an integer number (23418837).

Almost surely, 2^190953117 is an apocalyptic number.

It is an amenable number.

190953117 is a deficient number, since it is larger than the sum of its proper divisors (90072927).

190953117 is a wasteful number, since it uses less digits than its factorization.

190953117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400380 (or 400377 counting only the distinct ones).

The product of its (nonzero) digits is 8505, while the sum is 36.

The square root of 190953117 is about 13818.5786895759. The cubic root of 190953117 is about 575.8493981992.

The spelling of 190953117 in words is "one hundred ninety million, nine hundred fifty-three thousand, one hundred seventeen".