1043253403 has 8 divisors (see below), whose sum is σ = 1056916800. Its totient is φ = 1029667968.

The previous prime is 1043253397. The next prime is 1043253427. The reversal of 1043253403 is 3043523401.

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 1043253403 - 2⁵ = 1043253371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1043253473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7693 + ... + 46321.

It is an arithmetic number, because the mean of its divisors is an integer number (132114600).

Almost surely, 2^1043253403 is an apocalyptic number.

1043253403 is a deficient number, since it is larger than the sum of its proper divisors (13663397).

1043253403 is a wasteful number, since it uses less digits than its factorization.

1043253403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38981.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 1043253403 is about 32299.4334780039. The cubic root of 1043253403 is about 1014.2147835162.

Adding to 1043253403 its reverse (3043523401), we get a palindrome (4086776804).

The spelling of 1043253403 in words is "one billion, forty-three million, two hundred fifty-three thousand, four hundred three".