136539833 has 4 divisors (see below), whose sum is σ = 143726160. Its totient is φ = 129353508.

The previous prime is 136539829. The next prime is 136539847. The reversal of 136539833 is 338935631.

136539833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136539833 - 2² = 136539829 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136539133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3593135 + ... + 3593172.

It is an arithmetic number, because the mean of its divisors is an integer number (35931540).

Almost surely, 2^136539833 is an apocalyptic number.

It is an amenable number.

136539833 is a deficient number, since it is larger than the sum of its proper divisors (7186327).

136539833 is an equidigital number, since it uses as much as digits as its factorization.

136539833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7186326.

The product of its digits is 174960, while the sum is 41.

The square root of 136539833 is about 11685.0260162312. The cubic root of 136539833 is about 514.9358427006.

The spelling of 136539833 in words is "one hundred thirty-six million, five hundred thirty-nine thousand, eight hundred thirty-three".