136188868 has 12 divisors (see below), whose sum is σ = 241009020. Its totient is φ = 67329152.

The previous prime is 136188847. The next prime is 136188883. The reversal of 136188868 is 868881631.

It can be written as a sum of positive squares in 2 ways, for example, as 22297284 + 113891584 = 4722^2 + 10672^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190921 + ... + 191632.

It is an arithmetic number, because the mean of its divisors is an integer number (20084085).

Almost surely, 2^136188868 is an apocalyptic number.

It is an amenable number.

136188868 is a deficient number, since it is larger than the sum of its proper divisors (104820152).

136188868 is a wasteful number, since it uses less digits than its factorization.

136188868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382646 (or 382644 counting only the distinct ones).

The product of its digits is 442368, while the sum is 49.

The square root of 136188868 is about 11669.9986289631. The cubic root of 136188868 is about 514.4942633177.

The spelling of 136188868 in words is "one hundred thirty-six million, one hundred eighty-eight thousand, eight hundred sixty-eight".