136814813 has 8 divisors (see below), whose sum is σ = 137682720. Its totient is φ = 135950320.

The previous prime is 136814803. The next prime is 136814819. The reversal of 136814813 is 318418631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136814813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136814819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144923 + ... + 145863.

It is an arithmetic number, because the mean of its divisors is an integer number (17210340).

Almost surely, 2^136814813 is an apocalyptic number.

It is an amenable number.

136814813 is a deficient number, since it is larger than the sum of its proper divisors (867907).

136814813 is an equidigital number, since it uses as much as digits as its factorization.

136814813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707.

The product of its digits is 13824, while the sum is 35.

The square root of 136814813 is about 11696.7864390182. The cubic root of 136814813 is about 515.2812903896.

The spelling of 136814813 in words is "one hundred thirty-six million, eight hundred fourteen thousand, eight hundred thirteen".