136803943 has 4 divisors (see below), whose sum is σ = 137491600. Its totient is φ = 136116288.

The previous prime is 136803937. The next prime is 136804001. The reversal of 136803943 is 349308631.

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

It is a cyclic number.

It is not a de Polignac number, because 136803943 - 2²⁵ = 103249511 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 (136803143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343530 + ... + 343927.

It is an arithmetic number, because the mean of its divisors is an integer number (34372900).

Almost surely, 2^136803943 is an apocalyptic number.

136803943 is a deficient number, since it is larger than the sum of its proper divisors (687657).

136803943 is an equidigital number, since it uses as much as digits as its factorization.

136803943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687656.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 136803943 is about 11696.3217722496. The cubic root of 136803943 is about 515.2676435828.

The spelling of 136803943 in words is "one hundred thirty-six million, eight hundred three thousand, nine hundred forty-three".