136766911 has 4 divisors (see below), whose sum is σ = 140463352. Its totient is φ = 133070472.

The previous prime is 136766893. The next prime is 136766999. The reversal of 136766911 is 119667631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119667631 = 8297 ⋅14423.

It is a cyclic number.

It is not a de Polignac number, because 136766911 - 2⁵ = 136766879 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136766111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1848165 + ... + 1848238.

It is an arithmetic number, because the mean of its divisors is an integer number (35115838).

Almost surely, 2^136766911 is an apocalyptic number.

136766911 is a deficient number, since it is larger than the sum of its proper divisors (3696441).

136766911 is an equidigital number, since it uses as much as digits as its factorization.

136766911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696440.

The product of its digits is 40824, while the sum is 40.

The square root of 136766911 is about 11694.7386033207. The cubic root of 136766911 is about 515.2211461087.

The spelling of 136766911 in words is "one hundred thirty-six million, seven hundred sixty-six thousand, nine hundred eleven".