243412259 has 2 divisors, whose sum is σ = 243412260. Its totient is φ = 243412258.

The previous prime is 243412219. The next prime is 243412291. The reversal of 243412259 is 952214342.

It is an a-pointer prime, because the next prime (243412291) can be obtained adding 243412259 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243412259 - 2¹⁶ = 243346723 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (243412219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121706129 + 121706130.

It is an arithmetic number, because the mean of its divisors is an integer number (121706130).

Almost surely, 2^243412259 is an apocalyptic number.

243412259 is a deficient number, since it is larger than the sum of its proper divisors (1).

243412259 is an equidigital number, since it uses as much as digits as its factorization.

243412259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 243412259 is about 15601.6748780379. The cubic root of 243412259 is about 624.3778418897.

The spelling of 243412259 in words is "two hundred forty-three million, four hundred twelve thousand, two hundred fifty-nine".