243254 has 8 divisors (see below), whose sum is σ = 398088. Its totient is φ = 110560.

The previous prime is 243239. The next prime is 243259. The reversal of 243254 is 452342.

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

It is a d-powerful number, because it can be written as 2¹⁵ + 4⁴ + 2¹⁷ + 3² + 5⁷ + 4⁵ .

It is a pancake number, because a pancake can be divided into 243254 parts by 697 straight cuts.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243259) by changing a digit.

243254 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 5507 + ... + 5550.

It is an arithmetic number, because the mean of its divisors is an integer number (49761).

2²⁴³²⁵⁴ is an apocalyptic number.

243254 is a deficient number, since it is larger than the sum of its proper divisors (154834).

243254 is a wasteful number, since it uses less digits than its factorization.

243254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11070.

The product of its digits is 960, while the sum is 20.

The square root of 243254 is about 493.2078669283. The cubic root of 243254 is about 62.4242495604.

Adding to 243254 its reverse (452342), we get a palindrome (695596).

It can be divided in two parts, 2432 and 54, that multiplied together give a triangular number (131328 = T₅₁₂).

The spelling of 243254 in words is "two hundred forty-three thousand, two hundred fifty-four".