243188 has 12 divisors (see below), whose sum is σ = 464352. Its totient is φ = 110520.

The previous prime is 243167. The next prime is 243197. The reversal of 243188 is 881342.

243188 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 243188.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2720 + ... + 2807.

It is an arithmetic number, because the mean of its divisors is an integer number (38696).

2²⁴³¹⁸⁸ is an apocalyptic number.

It is an amenable number.

243188 is a deficient number, since it is larger than the sum of its proper divisors (221164).

243188 is a wasteful number, since it uses less digits than its factorization.

243188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542 (or 5540 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 243188 is about 493.1409534808. The cubic root of 243188 is about 62.4186033728.

The spelling of 243188 in words is "two hundred forty-three thousand, one hundred eighty-eight".