1003023253 has 4 divisors (see below), whose sum is σ = 1004006668. Its totient is φ = 1002039840.

The previous prime is 1003023233. The next prime is 1003023257. The reversal of 1003023253 is 3523203001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 712729809 + 290293444 = 26697^2 + 17038^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1003023253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1003023253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003023257) 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, 490176 + ... + 492217.

It is an arithmetic number, because the mean of its divisors is an integer number (251001667).

Almost surely, 2^1003023253 is an apocalyptic number.

It is an amenable number.

1003023253 is a deficient number, since it is larger than the sum of its proper divisors (983415).

1003023253 is an equidigital number, since it uses as much as digits as its factorization.

1003023253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983414.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 1003023253 is about 31670.5423540551. The cubic root of 1003023253 is about 1001.0067371402.

Adding to 1003023253 its reverse (3523203001), we get a palindrome (4526226254).

The spelling of 1003023253 in words is "one billion, three million, twenty-three thousand, two hundred fifty-three".