1003145641 has 24 divisors (see below), whose sum is σ = 1111117280. Its totient is φ = 902918016.

The previous prime is 1003145623. The next prime is 1003145677. The reversal of 1003145641 is 1465413001.

It is not a de Polignac number, because 1003145641 - 2⁵ = 1003145609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1003143641) 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 23 ways as a sum of consecutive naturals, for example, 1070125 + ... + 1071061.

Almost surely, 2^1003145641 is an apocalyptic number.

It is an amenable number.

1003145641 is a deficient number, since it is larger than the sum of its proper divisors (107971639).

1003145641 is an equidigital number, since it uses as much as digits as its factorization.

1003145641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1003145641 is about 31672.4745007396. The cubic root of 1003145641 is about 1001.0474494665.

Adding to 1003145641 its reverse (1465413001), we get a palindrome (2468558642).

The spelling of 1003145641 in words is "one billion, three million, one hundred forty-five thousand, six hundred forty-one".