2140041989 has 2 divisors, whose sum is σ = 2140041990. Its totient is φ = 2140041988.

The previous prime is 2140041983. The next prime is 2140042019. The reversal of 2140041989 is 9891400412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2114620225 + 25421764 = 45985^2 + 5042^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140041989 - 2⁸ = 2140041733 is a prime.

It is a super-2 number, since 2×2140041989² = 9159559429366152242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140041983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070020994 + 1070020995.

It is an arithmetic number, because the mean of its divisors is an integer number (1070020995).

Almost surely, 2^2140041989 is an apocalyptic number.

It is an amenable number.

2140041989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140041989 is an equidigital number, since it uses as much as digits as its factorization.

2140041989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 2140041989 is about 46260.5878583487. The cubic root of 2140041989 is about 1288.6671707567.

The spelling of 2140041989 in words is "two billion, one hundred forty million, forty-one thousand, nine hundred eighty-nine".