1252503 has 30 divisors (see below), whose sum is σ = 2184776. Its totient is φ = 700488.

The previous prime is 1252483. The next prime is 1252507. The reversal of 1252503 is 3052521.

It is a happy number.

It is not a de Polignac number, because 1252503 - 2⁶ = 1252439 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252507) 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 in 29 ways as a sum of consecutive naturals, for example, 26626 + ... + 26672.

2^1252503 is an apocalyptic number.

1252503 is a deficient number, since it is larger than the sum of its proper divisors (932273).

1252503 is an frugal number, since it uses more digits than its factorization.

1252503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1252503 is about 1119.1528045803. The cubic root of 1252503 is about 107.7935872307.

Adding to 1252503 its sum of digits (18), we get a palindrome (1252521).

It can be divided in two parts, 125 and 2503, that added together give a triangular number (2628 = T₇₂).

The spelling of 1252503 in words is "one million, two hundred fifty-two thousand, five hundred three".