2001900041 has 2 divisors, whose sum is σ = 2001900042. Its totient is φ = 2001900040.

The previous prime is 2001900011. The next prime is 2001900083. The reversal of 2001900041 is 1400091002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1398460816 + 603439225 = 37396^2 + 24565^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001900041 - 2¹⁰ = 2001899017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2001899992 and 2001900019.

It is not a weakly prime, because it can be changed into another prime (2001900011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000950020 + 1000950021.

It is an arithmetic number, because the mean of its divisors is an integer number (1000950021).

Almost surely, 2^2001900041 is an apocalyptic number.

It is an amenable number.

2001900041 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001900041 is an equidigital number, since it uses as much as digits as its factorization.

2001900041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2001900041 is about 44742.5976112250. The cubic root of 2001900041 is about 1260.3199072226.

Adding to 2001900041 its reverse (1400091002), we get a palindrome (3401991043).

The spelling of 2001900041 in words is "two billion, one million, nine hundred thousand, forty-one".