136936657 has 8 divisors (see below), whose sum is σ = 160876800. Its totient is φ = 114911760.

The previous prime is 136936609. The next prime is 136936669. The reversal of 136936657 is 756639631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136936657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136936697) 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 7 ways as a sum of consecutive naturals, for example, 478657 + ... + 478942.

It is an arithmetic number, because the mean of its divisors is an integer number (20109600).

Almost surely, 2^136936657 is an apocalyptic number.

It is an amenable number.

136936657 is a deficient number, since it is larger than the sum of its proper divisors (23940143).

136936657 is a wasteful number, since it uses less digits than its factorization.

136936657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957623.

The product of its digits is 612360, while the sum is 46.

The square root of 136936657 is about 11701.9937190207. The cubic root of 136936657 is about 515.4342107336.

The spelling of 136936657 in words is "one hundred thirty-six million, nine hundred thirty-six thousand, six hundred fifty-seven".