136681004 has 12 divisors (see below), whose sum is σ = 244754664. Its totient is φ = 66751104.

The previous prime is 136680989. The next prime is 136681007. The reversal of 136681004 is 400186631.

It is not an unprimeable number, because it can be changed into a prime (136681007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397157 + ... + 397500.

It is an arithmetic number, because the mean of its divisors is an integer number (20396222).

Almost surely, 2^136681004 is an apocalyptic number.

It is an amenable number.

136681004 is a deficient number, since it is larger than the sum of its proper divisors (108073660).

136681004 is a wasteful number, since it uses less digits than its factorization.

136681004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794704 (or 794702 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 136681004 is about 11691.0651353929. The cubic root of 136681004 is about 515.1132487303.

The spelling of 136681004 in words is "one hundred thirty-six million, six hundred eighty-one thousand, four".