1003273 has 2 divisors, whose sum is σ = 1003274. Its totient is φ = 1003272.

The previous prime is 1003259. The next prime is 1003279. The reversal of 1003273 is 3723001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 589824 + 413449 = 768^2 + 643^2 .

It is an emirp because it is prime and its reverse (3723001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1003273 - 2⁵ = 1003241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1003279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501636 + 501637.

It is an arithmetic number, because the mean of its divisors is an integer number (501637).

2^1003273 is an apocalyptic number.

It is an amenable number.

1003273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003273 is an equidigital number, since it uses as much as digits as its factorization.

1003273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 1003273 is about 1001.6351631208. The cubic root of 1003273 is about 100.1089811879.

Adding to 1003273 its reverse (3723001), we get a palindrome (4726274).

The spelling of 1003273 in words is "one million, three thousand, two hundred seventy-three".