7871141 has 2 divisors, whose sum is σ = 7871142. Its totient is φ = 7871140.

The previous prime is 7871113. The next prime is 7871159. The reversal of 7871141 is 1411787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7540516 + 330625 = 2746^2 + 575^2 .

It is a cyclic number.

It is not a de Polignac number, because 7871141 - 2⁶ = 7871077 is a prime.

It is a Sophie Germain prime.

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 (7871191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3935570 + 3935571.

It is an arithmetic number, because the mean of its divisors is an integer number (3935571).

Almost surely, 2^7871141 is an apocalyptic number.

It is an amenable number.

7871141 is a deficient number, since it is larger than the sum of its proper divisors (1).

7871141 is an equidigital number, since it uses as much as digits as its factorization.

7871141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1568, while the sum is 29.

The square root of 7871141 is about 2805.5553817382. Note that the first 3 decimals coincide. The cubic root of 7871141 is about 198.9203573459.

The spelling of 7871141 in words is "seven million, eight hundred seventy-one thousand, one hundred forty-one".