243087 has 16 divisors (see below), whose sum is σ = 365568. Its totient is φ = 142560.

The previous prime is 243077. The next prime is 243091. The reversal of 243087 is 780342.

243087 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243087 - 2¹² = 238991 is a prime.

243087 is strictly pandigital in base 7.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 243087.

It is not an unprimeable number, because it can be changed into a prime (243077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 762 + ... + 1032.

It is an arithmetic number, because the mean of its divisors is an integer number (22848).

2²⁴³⁰⁸⁷ is an apocalyptic number.

243087 is a deficient number, since it is larger than the sum of its proper divisors (122481).

243087 is a wasteful number, since it uses less digits than its factorization.

243087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 243087 is about 493.0385380475. The cubic root of 243087 is about 62.4099610167.

It can be divided in two parts, 24 and 3087, that multiplied together give a cube (74088 = 42³).

The spelling of 243087 in words is "two hundred forty-three thousand, eighty-seven".