136338839 has 8 divisors (see below), whose sum is σ = 167801760. Its totient is φ = 107872416.

The previous prime is 136338823. The next prime is 136338857. The reversal of 136338839 is 938833631.

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 136338839 - 2⁴ = 136338823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136338839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136338809) 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, 749024 + ... + 749205.

It is an arithmetic number, because the mean of its divisors is an integer number (20975220).

Almost surely, 2^136338839 is an apocalyptic number.

136338839 is a deficient number, since it is larger than the sum of its proper divisors (31462921).

136338839 is a wasteful number, since it uses less digits than its factorization.

136338839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498249.

The product of its digits is 279936, while the sum is 44.

The square root of 136338839 is about 11676.4223544714. The cubic root of 136338839 is about 514.6830475041.

The spelling of 136338839 in words is "one hundred thirty-six million, three hundred thirty-eight thousand, eight hundred thirty-nine".