136686028 has 6 divisors (see below), whose sum is σ = 239200556. Its totient is φ = 68343012.

The previous prime is 136686013. The next prime is 136686049. The reversal of 136686028 is 820686631.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17085750 + ... + 17085757.

Almost surely, 2^136686028 is an apocalyptic number.

It is an amenable number.

136686028 is a deficient number, since it is larger than the sum of its proper divisors (102514528).

136686028 is a wasteful number, since it uses less digits than its factorization.

136686028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34171511 (or 34171509 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 136686028 is about 11691.2799983578. The cubic root of 136686028 is about 515.1195600127.

The spelling of 136686028 in words is "one hundred thirty-six million, six hundred eighty-six thousand, twenty-eight".