1263299 has 2 divisors, whose sum is σ = 1263300. Its totient is φ = 1263298.

The previous prime is 1263263. The next prime is 1263307. The reversal of 1263299 is 9923621.

It is a strong prime.

It is an emirp because it is prime and its reverse (9923621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1263299 - 2²⁰ = 214723 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1263209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631649 + 631650.

It is an arithmetic number, because the mean of its divisors is an integer number (631650).

2^1263299 is an apocalyptic number.

1263299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263299 is an equidigital number, since it uses as much as digits as its factorization.

1263299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 32.

The square root of 1263299 is about 1123.9657468090. The cubic root of 1263299 is about 108.1024120011.

The spelling of 1263299 in words is "one million, two hundred sixty-three thousand, two hundred ninety-nine".