1003145253 has 32 divisors (see below), whose sum is σ = 1528492032. Its totient is φ = 579268800.

The previous prime is 1003145243. The next prime is 1003145279. The reversal of 1003145253 is 3525413001.

1003145253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1003145253 - 2⁹ = 1003144741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003145243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203251 + ... + 208127.

It is an arithmetic number, because the mean of its divisors is an integer number (47765376).

Almost surely, 2^1003145253 is an apocalyptic number.

It is an amenable number.

1003145253 is a deficient number, since it is larger than the sum of its proper divisors (525346779).

1003145253 is a wasteful number, since it uses less digits than its factorization.

1003145253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5185.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1003145253 is about 31672.4683755466. The cubic root of 1003145253 is about 1001.0473204037.

Adding to 1003145253 its reverse (3525413001), we get a palindrome (4528558254).

The spelling of 1003145253 in words is "one billion, three million, one hundred forty-five thousand, two hundred fifty-three".