99144317 has 2 divisors, whose sum is σ = 99144318. Its totient is φ = 99144316.

The previous prime is 99144307. The next prime is 99144319. The reversal of 99144317 is 71344199.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65108761 + 34035556 = 8069^2 + 5834^2 .

It is an emirp because it is prime and its reverse (71344199) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99144317 - 2⁸ = 99144061 is a prime.

Together with 99144319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99144319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49572158 + 49572159.

It is an arithmetic number, because the mean of its divisors is an integer number (49572159).

Almost surely, 2^99144317 is an apocalyptic number.

It is an amenable number.

99144317 is a deficient number, since it is larger than the sum of its proper divisors (1).

99144317 is an equidigital number, since it uses as much as digits as its factorization.

99144317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 99144317 is about 9957.1239321402. The cubic root of 99144317 is about 462.8311795982.

The spelling of 99144317 in words is "ninety-nine million, one hundred forty-four thousand, three hundred seventeen".