136539436 has 24 divisors (see below), whose sum is σ = 261155664. Its totient is φ = 61946880.

The previous prime is 136539409. The next prime is 136539437. The reversal of 136539436 is 634935631.

136539436 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (136539437) 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, 23476 + ... + 28708.

It is an arithmetic number, because the mean of its divisors is an integer number (10881486).

Almost surely, 2^136539436 is an apocalyptic number.

It is an amenable number.

136539436 is a deficient number, since it is larger than the sum of its proper divisors (124616228).

136539436 is a wasteful number, since it uses less digits than its factorization.

136539436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5841 (or 5839 counting only the distinct ones).

The product of its digits is 174960, while the sum is 40.

The square root of 136539436 is about 11685.0090286657. The cubic root of 136539436 is about 514.9353436283.

The spelling of 136539436 in words is "one hundred thirty-six million, five hundred thirty-nine thousand, four hundred thirty-six".