1279303 has 2 divisors, whose sum is σ = 1279304. Its totient is φ = 1279302.

The previous prime is 1279253. The next prime is 1279307. The reversal of 1279303 is 3039721.

It is a strong prime.

It is an emirp because it is prime and its reverse (3039721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1279303 - 2¹³ = 1271111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1279307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639651 + 639652.

It is an arithmetic number, because the mean of its divisors is an integer number (639652).

2^1279303 is an apocalyptic number.

1279303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1279303 is an equidigital number, since it uses as much as digits as its factorization.

1279303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 1279303 is about 1131.0627745620. The cubic root of 1279303 is about 108.5569932826.

The spelling of 1279303 in words is "one million, two hundred seventy-nine thousand, three hundred three".