1003145243 has 2 divisors, whose sum is σ = 1003145244. Its totient is φ = 1003145242.

The previous prime is 1003145219. The next prime is 1003145279. The reversal of 1003145243 is 3425413001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1003145243 - 2¹⁴ = 1003128859 is a prime.

It is not a weakly prime, because it can be changed into another prime (1003445243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501572621 + 501572622.

It is an arithmetic number, because the mean of its divisors is an integer number (501572622).

Almost surely, 2^1003145243 is an apocalyptic number.

1003145243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003145243 is an equidigital number, since it uses as much as digits as its factorization.

1003145243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1003145243 is about 31672.4682176808. The cubic root of 1003145243 is about 1001.0473170773.

Adding to 1003145243 its reverse (3425413001), we get a palindrome (4428558244).

The spelling of 1003145243 in words is "one billion, three million, one hundred forty-five thousand, two hundred forty-three".