243114013 has 4 divisors (see below), whose sum is σ = 249684700. Its totient is φ = 236543328.

The previous prime is 243114007. The next prime is 243114031. The reversal of 243114013 is 310411342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310411342 = 2 ⋅155205671.

It can be written as a sum of positive squares in 2 ways, for example, as 229886244 + 13227769 = 15162^2 + 3637^2 .

It is a cyclic number.

It is not a de Polignac number, because 243114013 - 2¹⁷ = 242982941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243114083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3285288 + ... + 3285361.

It is an arithmetic number, because the mean of its divisors is an integer number (62421175).

Almost surely, 2^243114013 is an apocalyptic number.

It is an amenable number.

243114013 is a deficient number, since it is larger than the sum of its proper divisors (6570687).

243114013 is an equidigital number, since it uses as much as digits as its factorization.

243114013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570686.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 243114013 is about 15592.1138079479. The cubic root of 243114013 is about 624.1227269634.

Adding to 243114013 its reverse (310411342), we get a palindrome (553525355).

The spelling of 243114013 in words is "two hundred forty-three million, one hundred fourteen thousand, thirteen".