136843243 has 8 divisors (see below), whose sum is σ = 142401600. Its totient is φ = 131392968.

The previous prime is 136843237. The next prime is 136843277. The reversal of 136843243 is 342348631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136843243 - 2¹³ = 136835051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136843199 and 136843208.

It is not an unprimeable number, because it can be changed into a prime (136843283) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 24433 + ... + 29506.

It is an arithmetic number, because the mean of its divisors is an integer number (17800200).

Almost surely, 2^136843243 is an apocalyptic number.

136843243 is a deficient number, since it is larger than the sum of its proper divisors (5558357).

136843243 is an equidigital number, since it uses as much as digits as its factorization.

136843243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54041.

The product of its digits is 41472, while the sum is 34.

The square root of 136843243 is about 11698.0016669515. The cubic root of 136843243 is about 515.3169795867.

The spelling of 136843243 in words is "one hundred thirty-six million, eight hundred forty-three thousand, two hundred forty-three".