243114214897 has 2 divisors, whose sum is σ = 243114214898. Its totient is φ = 243114214896.

The previous prime is 243114214859. The next prime is 243114214919. The reversal of 243114214897 is 798412411342.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222669790641 + 20444424256 = 471879^2 + 142984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243114214897 is a prime.

It is not a weakly prime, because it can be changed into another prime (243114214817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121557107448 + 121557107449.

It is an arithmetic number, because the mean of its divisors is an integer number (121557107449).

Almost surely, 2^243114214897 is an apocalyptic number.

It is an amenable number.

243114214897 is a deficient number, since it is larger than the sum of its proper divisors (1).

243114214897 is an equidigital number, since it uses as much as digits as its factorization.

243114214897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 46.

The spelling of 243114214897 in words is "two hundred forty-three billion, one hundred fourteen million, two hundred fourteen thousand, eight hundred ninety-seven".