136387766 has 4 divisors (see below), whose sum is σ = 204581652. Its totient is φ = 68193882.

The previous prime is 136387751. The next prime is 136387777. The reversal of 136387766 is 667783631.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 136387766.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 34096940 + ... + 34096943.

It is an arithmetic number, because the mean of its divisors is an integer number (51145413).

Almost surely, 2^136387766 is an apocalyptic number.

136387766 is a deficient number, since it is larger than the sum of its proper divisors (68193886).

136387766 is an equidigital number, since it uses as much as digits as its factorization.

136387766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68193885.

The product of its digits is 762048, while the sum is 47.

The square root of 136387766 is about 11678.5172860257. The cubic root of 136387766 is about 514.7446070861.

The spelling of 136387766 in words is "one hundred thirty-six million, three hundred eighty-seven thousand, seven hundred sixty-six".