999300122549 has 2 divisors, whose sum is σ = 999300122550. Its totient is φ = 999300122548.

The previous prime is 999300122501. The next prime is 999300122551. The reversal of 999300122549 is 945221003999.

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., 999300122500 + 49 = 999650^2 + 7^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999300122549 is a prime.

Together with 999300122551, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 999300122549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999300122749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499650061274 + 499650061275.

It is an arithmetic number, because the mean of its divisors is an integer number (499650061275).

Almost surely, 2^999300122549 is an apocalyptic number.

It is an amenable number.

999300122549 is a deficient number, since it is larger than the sum of its proper divisors (1).

999300122549 is an equidigital number, since it uses as much as digits as its factorization.

999300122549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 53.

It can be divided in two parts, 9993001225 and 49, that multiplied together give a square (489657060025 = 699755²).

The spelling of 999300122549 in words is "nine hundred ninety-nine billion, three hundred million, one hundred twenty-two thousand, five hundred forty-nine".