136320838 has 4 divisors (see below), whose sum is σ = 204481260. Its totient is φ = 68160418.

The previous prime is 136320803. The next prime is 136320853. The reversal of 136320838 is 838023631.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34080208 + ... + 34080211.

It is an arithmetic number, because the mean of its divisors is an integer number (51120315).

Almost surely, 2^136320838 is an apocalyptic number.

136320838 is a deficient number, since it is larger than the sum of its proper divisors (68160422).

136320838 is an equidigital number, since it uses as much as digits as its factorization.

136320838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68160421.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 136320838 is about 11675.6515021647. The cubic root of 136320838 is about 514.6603950759.

It can be divided in two parts, 1363 and 20838, that added together give a square (22201 = 149²).

The spelling of 136320838 in words is "one hundred thirty-six million, three hundred twenty thousand, eight hundred thirty-eight".