2141019869 has 2 divisors, whose sum is σ = 2141019870. Its totient is φ = 2141019868.

The previous prime is 2141019863. The next prime is 2141019871. The reversal of 2141019869 is 9689101412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1541504644 + 599515225 = 39262^2 + 24485^2 .

It is a cyclic number.

It is not a de Polignac number, because 2141019869 - 2²⁰ = 2139971293 is a prime.

It is a super-2 number, since 2×2141019869² = 9167932158905554322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2141019871, it forms a pair of twin primes.

It is a Chen 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 (2141019863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070509934 + 1070509935.

It is an arithmetic number, because the mean of its divisors is an integer number (1070509935).

Almost surely, 2^2141019869 is an apocalyptic number.

It is an amenable number.

2141019869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141019869 is an equidigital number, since it uses as much as digits as its factorization.

2141019869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 2141019869 is about 46271.1559073252. The cubic root of 2141019869 is about 1288.8634239092.

The spelling of 2141019869 in words is "two billion, one hundred forty-one million, nineteen thousand, eight hundred sixty-nine".