2003451641 has 2 divisors, whose sum is σ = 2003451642. Its totient is φ = 2003451640.

The previous prime is 2003451623. The next prime is 2003451673. The reversal of 2003451641 is 1461543002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1970916025 + 32535616 = 44395^2 + 5704^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003451641 - 2¹⁴ = 2003435257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2003451641.

It is not a weakly prime, because it can be changed into another prime (2003450641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001725820 + 1001725821.

It is an arithmetic number, because the mean of its divisors is an integer number (1001725821).

Almost surely, 2^2003451641 is an apocalyptic number.

It is an amenable number.

2003451641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003451641 is an equidigital number, since it uses as much as digits as its factorization.

2003451641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2003451641 is about 44759.9334338200. The cubic root of 2003451641 is about 1260.6454325285.

Adding to 2003451641 its reverse (1461543002), we get a palindrome (3464994643).

The spelling of 2003451641 in words is "two billion, three million, four hundred fifty-one thousand, six hundred forty-one".