2001031859 has 2 divisors, whose sum is σ = 2001031860. Its totient is φ = 2001031858.

The previous prime is 2001031853. The next prime is 2001032009. The reversal of 2001031859 is 9581301002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001031859 - 2⁸ = 2001031603 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2001031853) 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 as a sum of consecutive naturals, namely, 1000515929 + 1000515930.

It is an arithmetic number, because the mean of its divisors is an integer number (1000515930).

Almost surely, 2^2001031859 is an apocalyptic number.

2001031859 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001031859 is an equidigital number, since it uses as much as digits as its factorization.

2001031859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 2001031859 is about 44732.8945967059. The cubic root of 2001031859 is about 1260.1376894547.

The spelling of 2001031859 in words is "two billion, one million, thirty-one thousand, eight hundred fifty-nine".