12299813 has 2 divisors, whose sum is σ = 12299814. Its totient is φ = 12299812.

The previous prime is 12299809. The next prime is 12299863. The reversal of 12299813 is 31899221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9138529 + 3161284 = 3023^2 + 1778^2 .

It is an emirp because it is prime and its reverse (31899221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12299813 - 2² = 12299809 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12299803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6149906 + 6149907.

It is an arithmetic number, because the mean of its divisors is an integer number (6149907).

Almost surely, 2^12299813 is an apocalyptic number.

It is an amenable number.

12299813 is a deficient number, since it is larger than the sum of its proper divisors (1).

12299813 is an equidigital number, since it uses as much as digits as its factorization.

12299813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 35.

The square root of 12299813 is about 3507.1089233156. The cubic root of 12299813 is about 230.8338541551.

The spelling of 12299813 in words is "twelve million, two hundred ninety-nine thousand, eight hundred thirteen".