82941121 has 2 divisors, whose sum is σ = 82941122. Its totient is φ = 82941120.

The previous prime is 82941119. The next prime is 82941139. The reversal of 82941121 is 12114928.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53129521 + 29811600 = 7289^2 + 5460^2 .

It is a cyclic number.

It is not a de Polignac number, because 82941121 - 2¹ = 82941119 is a prime.

Together with 82941119, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82941121.

It is not a weakly prime, because it can be changed into another prime (82941721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41470560 + 41470561.

It is an arithmetic number, because the mean of its divisors is an integer number (41470561).

Almost surely, 2^82941121 is an apocalyptic number.

It is an amenable number.

82941121 is a deficient number, since it is larger than the sum of its proper divisors (1).

82941121 is an equidigital number, since it uses as much as digits as its factorization.

82941121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 28.

The square root of 82941121 is about 9107.2016009310. The cubic root of 82941121 is about 436.1038964168.

The spelling of 82941121 in words is "eighty-two million, nine hundred forty-one thousand, one hundred twenty-one".