136697117 has 4 divisors (see below), whose sum is σ = 137906940. Its totient is φ = 135487296.

The previous prime is 136697111. The next prime is 136697149. The reversal of 136697117 is 711796631.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 59151481 + 77545636 = 7691^2 + 8806^2 .

It is a cyclic number.

It is not a de Polignac number, because 136697117 - 2⁶ = 136697053 is a prime.

It is a super-2 number, since 2×136697117² = 37372203592223378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136697111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604742 + ... + 604967.

It is an arithmetic number, because the mean of its divisors is an integer number (34476735).

Almost surely, 2^136697117 is an apocalyptic number.

It is an amenable number.

136697117 is a deficient number, since it is larger than the sum of its proper divisors (1209823).

136697117 is a wasteful number, since it uses less digits than its factorization.

136697117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209822.

The product of its digits is 47628, while the sum is 41.

The square root of 136697117 is about 11691.7542310810. The cubic root of 136697117 is about 515.1334897621.

The spelling of 136697117 in words is "one hundred thirty-six million, six hundred ninety-seven thousand, one hundred seventeen".