1253503 has 8 divisors (see below), whose sum is σ = 1299888. Its totient is φ = 1208064.

The previous prime is 1253479. The next prime is 1253513. The reversal of 1253503 is 3053521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1253503 - 2⁵ = 1253471 is a prime.

It is a Duffinian number.

1253503 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253513) 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 7 ways as a sum of consecutive naturals, for example, 3375 + ... + 3727.

It is an arithmetic number, because the mean of its divisors is an integer number (162486).

2^1253503 is an apocalyptic number.

1253503 is a deficient number, since it is larger than the sum of its proper divisors (46385).

1253503 is an equidigital number, since it uses as much as digits as its factorization.

1253503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 1253503 is about 1119.5994819577. The cubic root of 1253503 is about 107.8222671121.

The spelling of 1253503 in words is "one million, two hundred fifty-three thousand, five hundred three".