3990397141 has 2 divisors, whose sum is σ = 3990397142. Its totient is φ = 3990397140.

The previous prime is 3990397139. The next prime is 3990397163. The reversal of 3990397141 is 1417930993.

3990397141 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2945232900 + 1045164241 = 54270^2 + 32329^2 .

It is a cyclic number.

It is not a de Polignac number, because 3990397141 - 2¹ = 3990397139 is a prime.

Together with 3990397139, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 3990397091 and 3990397100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3990397171) 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, 1995198570 + 1995198571.

It is an arithmetic number, because the mean of its divisors is an integer number (1995198571).

Almost surely, 2^3990397141 is an apocalyptic number.

It is an amenable number.

3990397141 is a deficient number, since it is larger than the sum of its proper divisors (1).

3990397141 is an equidigital number, since it uses as much as digits as its factorization.

3990397141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 46.

The square root of 3990397141 is about 63169.5903184436. The cubic root of 3990397141 is about 1586.1297350285.

The spelling of 3990397141 in words is "three billion, nine hundred ninety million, three hundred ninety-seven thousand, one hundred forty-one".