136391167 has 4 divisors (see below), whose sum is σ = 148790376. Its totient is φ = 123991960.

The previous prime is 136391159. The next prime is 136391179. The reversal of 136391167 is 761193631.

136391167 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 761193631 = 11 ⋅69199421.

It is a cyclic number.

It is not a de Polignac number, because 136391167 - 2³ = 136391159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136391117) 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, 6199588 + ... + 6199609.

It is an arithmetic number, because the mean of its divisors is an integer number (37197594).

Almost surely, 2^136391167 is an apocalyptic number.

136391167 is a deficient number, since it is larger than the sum of its proper divisors (12399209).

136391167 is a wasteful number, since it uses less digits than its factorization.

136391167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12399208.

The product of its digits is 20412, while the sum is 37.

The square root of 136391167 is about 11678.6628943557. The cubic root of 136391167 is about 514.7488856513.

The spelling of 136391167 in words is "one hundred thirty-six million, three hundred ninety-one thousand, one hundred sixty-seven".