1275503 has 2 divisors, whose sum is σ = 1275504. Its totient is φ = 1275502.

The previous prime is 1275499. The next prime is 1275523. The reversal of 1275503 is 3055721.

It is a weak prime.

It is an emirp because it is prime and its reverse (3055721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1275503 - 2² = 1275499 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1275523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637751 + 637752.

It is an arithmetic number, because the mean of its divisors is an integer number (637752).

2^1275503 is an apocalyptic number.

1275503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275503 is an equidigital number, since it uses as much as digits as its factorization.

1275503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 1275503 is about 1129.3816892442. The cubic root of 1275503 is about 108.4494019636.

The spelling of 1275503 in words is "one million, two hundred seventy-five thousand, five hundred three".