841142161 has 2 divisors, whose sum is σ = 841142162. Its totient is φ = 841142160.

The previous prime is 841142149. The next prime is 841142207. The reversal of 841142161 is 161241148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 760932225 + 80209936 = 27585^2 + 8956^2 .

It is a cyclic number.

It is not a de Polignac number, because 841142161 - 2⁹ = 841141649 is a prime.

It is not a weakly prime, because it can be changed into another prime (841142111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420571080 + 420571081.

It is an arithmetic number, because the mean of its divisors is an integer number (420571081).

Almost surely, 2^841142161 is an apocalyptic number.

It is an amenable number.

841142161 is a deficient number, since it is larger than the sum of its proper divisors (1).

841142161 is an equidigital number, since it uses as much as digits as its factorization.

841142161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 28.

The square root of 841142161 is about 29002.4509481526. The cubic root of 841142161 is about 943.9662504841.

The spelling of 841142161 in words is "eight hundred forty-one million, one hundred forty-two thousand, one hundred sixty-one".