136685677 has 8 divisors (see below), whose sum is σ = 147389760. Its totient is φ = 126332640.

The previous prime is 136685669. The next prime is 136685683. The reversal of 136685677 is 776586631.

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 136685677 - 2³ = 136685669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136685677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136685617) 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, 86953 + ... + 88510.

It is an arithmetic number, because the mean of its divisors is an integer number (18423720).

Almost surely, 2^136685677 is an apocalyptic number.

It is an amenable number.

136685677 is a deficient number, since it is larger than the sum of its proper divisors (10704083).

136685677 is a wasteful number, since it uses less digits than its factorization.

136685677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175523.

The product of its digits is 1270080, while the sum is 49.

The square root of 136685677 is about 11691.2649871603. The cubic root of 136685677 is about 515.1191190822.

The spelling of 136685677 in words is "one hundred thirty-six million, six hundred eighty-five thousand, six hundred seventy-seven".