1500503 has 2 divisors, whose sum is σ = 1500504. Its totient is φ = 1500502.

The previous prime is 1500491. The next prime is 1500511. The reversal of 1500503 is 3050051.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1500503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1500523) 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, 750251 + 750252.

It is an arithmetic number, because the mean of its divisors is an integer number (750252).

2^1500503 is an apocalyptic number.

1500503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1500503 is an equidigital number, since it uses as much as digits as its factorization.

1500503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 1500503 is about 1224.9502030695. The cubic root of 1500503 is about 114.4842181868.

Adding to 1500503 its reverse (3050051), we get a palindrome (4550554).

The spelling of 1500503 in words is "one million, five hundred thousand, five hundred three".