7144312517 has 2 divisors, whose sum is σ = 7144312518. Its totient is φ = 7144312516.

The previous prime is 7144312507. The next prime is 7144312541. The reversal of 7144312517 is 7152134417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7098736516 + 45576001 = 84254^2 + 6751^2 .

It is an emirp because it is prime and its reverse (7152134417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7144312517 - 2⁶ = 7144312453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7144312507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3572156258 + 3572156259.

It is an arithmetic number, because the mean of its divisors is an integer number (3572156259).

Almost surely, 2^7144312517 is an apocalyptic number.

It is an amenable number.

7144312517 is a deficient number, since it is larger than the sum of its proper divisors (1).

7144312517 is an equidigital number, since it uses as much as digits as its factorization.

7144312517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 35.

The square root of 7144312517 is about 84524.0351438572. The cubic root of 7144312517 is about 1925.9875759728.

The spelling of 7144312517 in words is "seven billion, one hundred forty-four million, three hundred twelve thousand, five hundred seventeen".