243112 has 8 divisors (see below), whose sum is σ = 455850. Its totient is φ = 121552.

The previous prime is 243109. The next prime is 243119. The reversal of 243112 is 211342.

It can be written as a sum of positive squares in only one way, i.e., 188356 + 54756 = 434^2 + 234^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 243092 and 243101.

It is not an unprimeable number, because it can be changed into a prime (243119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15187 + ... + 15202.

2²⁴³¹¹² is an apocalyptic number.

It is an amenable number.

243112 is a deficient number, since it is larger than the sum of its proper divisors (212738).

243112 is a wasteful number, since it uses less digits than its factorization.

243112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30395 (or 30391 counting only the distinct ones).

The product of its digits is 48, while the sum is 13.

The square root of 243112 is about 493.0638903834. The cubic root of 243112 is about 62.4121004366.

Adding to 243112 its reverse (211342), we get a palindrome (454454).

It can be divided in two parts, 24 and 3112, that added together give a square (3136 = 56²).

The spelling of 243112 in words is "two hundred forty-three thousand, one hundred twelve", and thus it is an iban number.