841542881 has 2 divisors, whose sum is σ = 841542882. Its totient is φ = 841542880.

The previous prime is 841542869. The next prime is 841542937. The reversal of 841542881 is 188245148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 464833600 + 376709281 = 21560^2 + 19409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-841542881 is a prime.

It is a super-2 number, since 2×841542881² = 1416388841123560322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (841542841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420771440 + 420771441.

It is an arithmetic number, because the mean of its divisors is an integer number (420771441).

Almost surely, 2^841542881 is an apocalyptic number.

It is an amenable number.

841542881 is a deficient number, since it is larger than the sum of its proper divisors (1).

841542881 is an equidigital number, since it uses as much as digits as its factorization.

841542881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81920, while the sum is 41.

The square root of 841542881 is about 29009.3585072128. The cubic root of 841542881 is about 944.1161284797.

The spelling of 841542881 in words is "eight hundred forty-one million, five hundred forty-two thousand, eight hundred eighty-one".