243514121 has 2 divisors, whose sum is σ = 243514122. Its totient is φ = 243514120.

The previous prime is 243514109. The next prime is 243514147. The reversal of 243514121 is 121415342.

243514121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170172025 + 73342096 = 13045^2 + 8564^2 .

It is a cyclic number.

It is not a de Polignac number, because 243514121 - 2¹⁰ = 243513097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (243514151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121757060 + 121757061.

It is an arithmetic number, because the mean of its divisors is an integer number (121757061).

Almost surely, 2^243514121 is an apocalyptic number.

It is an amenable number.

243514121 is a deficient number, since it is larger than the sum of its proper divisors (1).

243514121 is an equidigital number, since it uses as much as digits as its factorization.

243514121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 243514121 is about 15604.9389937930. The cubic root of 243514121 is about 624.4649252962.

Adding to 243514121 its reverse (121415342), we get a palindrome (364929463).

The spelling of 243514121 in words is "two hundred forty-three million, five hundred fourteen thousand, one hundred twenty-one".