243102 has 16 divisors (see below), whose sum is σ = 502272. Its totient is φ = 78360.

The previous prime is 243101. The next prime is 243109. The reversal of 243102 is 201342.

243102 is nontrivially palindromic in base 14.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468 + ... + 839.

It is an arithmetic number, because the mean of its divisors is an integer number (31392).

2²⁴³¹⁰² is an apocalyptic number.

243102 is an abundant number, since it is smaller than the sum of its proper divisors (259170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243102 is a wasteful number, since it uses less digits than its factorization.

243102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 243102 is about 493.0537496055. The cubic root of 243102 is about 62.4112446862.

Adding to 243102 its reverse (201342), we get a palindrome (444444).

The spelling of 243102 in words is "two hundred forty-three thousand, one hundred two", and thus it is an iban number.