136322839 has 4 divisors (see below), whose sum is σ = 136457640. Its totient is φ = 136188040.

The previous prime is 136322833. The next prime is 136322867. The reversal of 136322839 is 938223631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938223631 = 29 ⋅32352539.

It is a cyclic number.

It is not a de Polignac number, because 136322839 - 2²¹ = 134225687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136322798 and 136322807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136322833) 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, 65872 + ... + 67909.

It is an arithmetic number, because the mean of its divisors is an integer number (34114410).

Almost surely, 2^136322839 is an apocalyptic number.

136322839 is a deficient number, since it is larger than the sum of its proper divisors (134801).

136322839 is a wasteful number, since it uses less digits than its factorization.

136322839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134800.

The product of its digits is 46656, while the sum is 37.

The square root of 136322839 is about 11675.7371929998. The cubic root of 136322839 is about 514.6629132294.

It can be divided in two parts, 13632 and 2839, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 136322839 in words is "one hundred thirty-six million, three hundred twenty-two thousand, eight hundred thirty-nine".