243086 has 8 divisors (see below), whose sum is σ = 383880. Its totient is φ = 115128.

The previous prime is 243077. The next prime is 243091. The reversal of 243086 is 680342.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 3161 + ... + 3236.

It is an arithmetic number, because the mean of its divisors is an integer number (47985).

2²⁴³⁰⁸⁶ is an apocalyptic number.

243086 is a deficient number, since it is larger than the sum of its proper divisors (140794).

243086 is a wasteful number, since it uses less digits than its factorization.

243086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6418.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 243086 is about 493.0375239269. The cubic root of 243086 is about 62.4098754368.

The spelling of 243086 in words is "two hundred forty-three thousand, eighty-six".