190668136 has 16 divisors (see below), whose sum is σ = 364248900. Its totient is φ = 93535104.

The previous prime is 190668119. The next prime is 190668193. The reversal of 190668136 is 631866091.

It can be written as a sum of positive squares in 2 ways, for example, as 190605636 + 62500 = 13806^2 + 250^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224421 + ... + 225268.

Almost surely, 2^190668136 is an apocalyptic number.

It is an amenable number.

190668136 is a deficient number, since it is larger than the sum of its proper divisors (173580764).

190668136 is a wasteful number, since it uses less digits than its factorization.

190668136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449748 (or 449744 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 190668136 is about 13808.2633230975. The cubic root of 190668136 is about 575.5627871089.

The spelling of 190668136 in words is "one hundred ninety million, six hundred sixty-eight thousand, one hundred thirty-six".