136804205 has 4 divisors (see below), whose sum is σ = 164165052. Its totient is φ = 109443360.

The previous prime is 136804193. The next prime is 136804259. The reversal of 136804205 is 502408631.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26512201 + 110292004 = 5149^2 + 10502^2 .

It is not a de Polignac number, because 136804205 - 2⁴ = 136804189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13680416 + ... + 13680425.

It is an arithmetic number, because the mean of its divisors is an integer number (41041263).

Almost surely, 2^136804205 is an apocalyptic number.

It is an amenable number.

136804205 is a deficient number, since it is larger than the sum of its proper divisors (27360847).

136804205 is an equidigital number, since it uses as much as digits as its factorization.

136804205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27360846.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 136804205 is about 11696.3329723465. The cubic root of 136804205 is about 515.2679725207.

The spelling of 136804205 in words is "one hundred thirty-six million, eight hundred four thousand, two hundred five".