136363805 has 4 divisors (see below), whose sum is σ = 163636572. Its totient is φ = 109091040.

The previous prime is 136363769. The next prime is 136363819. The reversal of 136363805 is 508363631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 508363631 = 17 ⋅29903743.

It can be written as a sum of positive squares in 2 ways, for example, as 20994724 + 115369081 = 4582^2 + 10741^2 .

It is not a de Polignac number, because 136363805 - 2¹⁰ = 136362781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13636376 + ... + 13636385.

It is an arithmetic number, because the mean of its divisors is an integer number (40909143).

Almost surely, 2^136363805 is an apocalyptic number.

It is an amenable number.

136363805 is a deficient number, since it is larger than the sum of its proper divisors (27272767).

136363805 is an equidigital number, since it uses as much as digits as its factorization.

136363805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27272766.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 136363805 is about 11677.4913829983. The cubic root of 136363805 is about 514.7144613767.

The spelling of 136363805 in words is "one hundred thirty-six million, three hundred sixty-three thousand, eight hundred five".