243146 has 8 divisors (see below), whose sum is σ = 370884. Its totient is φ = 119520.

The previous prime is 243137. The next prime is 243149. The reversal of 243146 is 641342.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 235225 + 7921 = 485^2 + 89^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (243149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875 + ... + 1118.

2²⁴³¹⁴⁶ is an apocalyptic number.

243146 is a deficient number, since it is larger than the sum of its proper divisors (127738).

243146 is a wasteful number, since it uses less digits than its factorization.

243146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056.

The product of its digits is 576, while the sum is 20.

The square root of 243146 is about 493.0983674684. The cubic root of 243146 is about 62.4150098124.

Adding to 243146 its reverse (641342), we get a palindrome (884488).

The spelling of 243146 in words is "two hundred forty-three thousand, one hundred forty-six".