136853805 has 32 divisors (see below), whose sum is σ = 242805888. Its totient is φ = 65260800.

The previous prime is 136853797. The next prime is 136853831. The reversal of 136853805 is 508358631.

It is not a de Polignac number, because 136853805 - 2³ = 136853797 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 3267 + ... + 16863.

It is an arithmetic number, because the mean of its divisors is an integer number (7587684).

Almost surely, 2^136853805 is an apocalyptic number.

136853805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136853805 is a deficient number, since it is larger than the sum of its proper divisors (105952083).

136853805 is a wasteful number, since it uses less digits than its factorization.

136853805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13677.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 136853805 is about 11698.4531028679. The cubic root of 136853805 is about 515.3302371842.

The spelling of 136853805 in words is "one hundred thirty-six million, eight hundred fifty-three thousand, eight hundred five".