243106 has 4 divisors (see below), whose sum is σ = 364662. Its totient is φ = 121552.

The previous prime is 243101. The next prime is 243109. The reversal of 243106 is 601342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 241081 + 2025 = 491^2 + 45^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 243106.

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 as a sum of consecutive naturals, namely, 60775 + ... + 60778.

2²⁴³¹⁰⁶ is an apocalyptic number.

243106 is a deficient number, since it is larger than the sum of its proper divisors (121556).

243106 is a wasteful number, since it uses less digits than its factorization.

243106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121555.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 243106 is about 493.0578059417. The cubic root of 243106 is about 62.4115869892.

Adding to 243106 its reverse (601342), we get a palindrome (844448).

The spelling of 243106 in words is "two hundred forty-three thousand, one hundred six".