1297103 has 2 divisors, whose sum is σ = 1297104. Its totient is φ = 1297102.

The previous prime is 1297091. The next prime is 1297123. The reversal of 1297103 is 3017921.

It is a weak prime.

It is an emirp because it is prime and its reverse (3017921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1297103 - 2¹⁸ = 1034959 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1297123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648551 + 648552.

It is an arithmetic number, because the mean of its divisors is an integer number (648552).

2^1297103 is an apocalyptic number.

1297103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297103 is an equidigital number, since it uses as much as digits as its factorization.

1297103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1297103 is about 1138.9042979987. The cubic root of 1297103 is about 109.0581571082.

The spelling of 1297103 in words is "one million, two hundred ninety-seven thousand, one hundred three".