136813826 has 16 divisors (see below), whose sum is σ = 210389400. Its totient is φ = 66705408.

The previous prime is 136813811. The next prime is 136813847. The reversal of 136813826 is 628318631.

It can be written as a sum of positive squares in 4 ways, for example, as 120012025 + 16801801 = 10955^2 + 4099^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 136813826.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7730 + ... + 18258.

Almost surely, 2^136813826 is an apocalyptic number.

136813826 is a deficient number, since it is larger than the sum of its proper divisors (73575574).

136813826 is a wasteful number, since it uses less digits than its factorization.

136813826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10693.

The product of its digits is 41472, while the sum is 38.

The square root of 136813826 is about 11696.7442478666. The cubic root of 136813826 is about 515.2800512843.

The spelling of 136813826 in words is "one hundred thirty-six million, eight hundred thirteen thousand, eight hundred twenty-six".