243122443 has 8 divisors (see below), whose sum is σ = 253888416. Its totient is φ = 232372800.

The previous prime is 243122413. The next prime is 243122471. The reversal of 243122443 is 344221342.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 243122443 - 2¹³ = 243114251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243122413) 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, 34023 + ... + 40543.

It is an arithmetic number, because the mean of its divisors is an integer number (31736052).

Almost surely, 2^243122443 is an apocalyptic number.

243122443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

243122443 is a deficient number, since it is larger than the sum of its proper divisors (10765973).

243122443 is a wasteful number, since it uses less digits than its factorization.

243122443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8165.

The product of its digits is 4608, while the sum is 25.

The square root of 243122443 is about 15592.3841345703. The cubic root of 243122443 is about 624.1299407170.

Adding to 243122443 its reverse (344221342), we get a palindrome (587343785).

The spelling of 243122443 in words is "two hundred forty-three million, one hundred twenty-two thousand, four hundred forty-three".