1003453243 has 8 divisors (see below), whose sum is σ = 1103635008. Its totient is φ = 906556224.

The previous prime is 1003453219. The next prime is 1003453247. The reversal of 1003453243 is 3423543001.

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 1003453243 - 2⁹ = 1003452731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003453247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820546 + ... + 821767.

It is an arithmetic number, because the mean of its divisors is an integer number (137954376).

Almost surely, 2^1003453243 is an apocalyptic number.

1003453243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1003453243 is a deficient number, since it is larger than the sum of its proper divisors (100181765).

1003453243 is a wasteful number, since it uses less digits than its factorization.

1003453243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642373.

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

The square root of 1003453243 is about 31677.3301116114. The cubic root of 1003453243 is about 1001.1497585486.

Adding to 1003453243 its reverse (3423543001), we get a palindrome (4426996244).

The spelling of 1003453243 in words is "one billion, three million, four hundred fifty-three thousand, two hundred forty-three".