14243042557 has 2 divisors, whose sum is σ = 14243042558. Its totient is φ = 14243042556.

The previous prime is 14243042533. The next prime is 14243042579. The reversal of 14243042557 is 75524034241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13546399321 + 696643236 = 116389^2 + 26394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14243042557 is a prime.

It is a super-2 number, since 2×14243042557² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14243042057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7121521278 + 7121521279.

It is an arithmetic number, because the mean of its divisors is an integer number (7121521279).

Almost surely, 2^14243042557 is an apocalyptic number.

It is an amenable number.

14243042557 is a deficient number, since it is larger than the sum of its proper divisors (1).

14243042557 is an equidigital number, since it uses as much as digits as its factorization.

14243042557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 37.

Adding to 14243042557 its reverse (75524034241), we get a palindrome (89767076798).

The spelling of 14243042557 in words is "fourteen billion, two hundred forty-three million, forty-two thousand, five hundred fifty-seven".