136781367137 has 8 divisors (see below), whose sum is σ = 144073368000. Its totient is φ = 129498664464.

The previous prime is 136781367127. The next prime is 136781367227. The reversal of 136781367137 is 731763187631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136781367137 - 2²⁴ = 136764589921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136781367127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2294333 + ... + 2353194.

It is an arithmetic number, because the mean of its divisors is an integer number (18009171000).

Almost surely, 2^136781367137 is an apocalyptic number.

It is an amenable number.

136781367137 is a deficient number, since it is larger than the sum of its proper divisors (7292000863).

136781367137 is a wasteful number, since it uses less digits than its factorization.

136781367137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4649095.

The product of its digits is 2667168, while the sum is 53.

The spelling of 136781367137 in words is "one hundred thirty-six billion, seven hundred eighty-one million, three hundred sixty-seven thousand, one hundred thirty-seven".