136866194 has 16 divisors (see below), whose sum is σ = 210824640. Its totient is φ = 66614160.

The previous prime is 136866187. The next prime is 136866217. The reversal of 136866194 is 491668631.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6524 + ... + 17784.

It is an arithmetic number, because the mean of its divisors is an integer number (13176540).

Almost surely, 2^136866194 is an apocalyptic number.

136866194 is a deficient number, since it is larger than the sum of its proper divisors (73958446).

136866194 is a wasteful number, since it uses less digits than its factorization.

136866194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11425.

The product of its digits is 186624, while the sum is 44.

The square root of 136866194 is about 11698.9826053380. The cubic root of 136866194 is about 515.3457871931.

The spelling of 136866194 in words is "one hundred thirty-six million, eight hundred sixty-six thousand, one hundred ninety-four".