1253003 has 4 divisors (see below), whose sum is σ = 1296240. Its totient is φ = 1209768.

The previous prime is 1252997. The next prime is 1253011. The reversal of 1253003 is 3003521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3003521 = 83 ⋅36187.

It is a cyclic number.

It is not a de Polignac number, because 1253003 - 2⁴ = 1252987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253023) 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 3 ways as a sum of consecutive naturals, for example, 21575 + ... + 21632.

It is an arithmetic number, because the mean of its divisors is an integer number (324060).

2^1253003 is an apocalyptic number.

1253003 is a deficient number, since it is larger than the sum of its proper divisors (43237).

1253003 is an equidigital number, since it uses as much as digits as its factorization.

1253003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43236.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 1253003 is about 1119.3761655494. The cubic root of 1253003 is about 107.8079290788.

Adding to 1253003 its reverse (3003521), we get a palindrome (4256524).

The spelling of 1253003 in words is "one million, two hundred fifty-three thousand, three".