1003253 has 4 divisors (see below), whose sum is σ = 1035648. Its totient is φ = 970860.

The previous prime is 1003241. The next prime is 1003259. The reversal of 1003253 is 3523001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3523001 = 113 ⋅31177.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1003253 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16151 + ... + 16212.

It is an arithmetic number, because the mean of its divisors is an integer number (258912).

2^1003253 is an apocalyptic number.

It is an amenable number.

1003253 is a deficient number, since it is larger than the sum of its proper divisors (32395).

1003253 is an equidigital number, since it uses as much as digits as its factorization.

1003253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32394.

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

The square root of 1003253 is about 1001.6251793960. The cubic root of 1003253 is about 100.1083159675.

Adding to 1003253 its reverse (3523001), we get a palindrome (4526254).

The spelling of 1003253 in words is "one million, three thousand, two hundred fifty-three".