243122552567 has 2 divisors, whose sum is σ = 243122552568. Its totient is φ = 243122552566.

The previous prime is 243122552539. The next prime is 243122552573. The reversal of 243122552567 is 765255221342.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243122552567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243122552537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121561276283 + 121561276284.

It is an arithmetic number, because the mean of its divisors is an integer number (121561276284).

Almost surely, 2^243122552567 is an apocalyptic number.

243122552567 is a deficient number, since it is larger than the sum of its proper divisors (1).

243122552567 is an equidigital number, since it uses as much as digits as its factorization.

243122552567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008000, while the sum is 44.

The spelling of 243122552567 in words is "two hundred forty-three billion, one hundred twenty-two million, five hundred fifty-two thousand, five hundred sixty-seven".