83322181 has 2 divisors, whose sum is σ = 83322182. Its totient is φ = 83322180.

The previous prime is 83322179. The next prime is 83322199. The reversal of 83322181 is 18122338.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47141956 + 36180225 = 6866^2 + 6015^2 .

It is a cyclic number.

It is not a de Polignac number, because 83322181 - 2¹ = 83322179 is a prime.

It is a super-2 number, since 2×83322181² = 13885171693193522, which contains 22 as substring.

Together with 83322179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83322131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41661090 + 41661091.

It is an arithmetic number, because the mean of its divisors is an integer number (41661091).

Almost surely, 2^83322181 is an apocalyptic number.

It is an amenable number.

83322181 is a deficient number, since it is larger than the sum of its proper divisors (1).

83322181 is an equidigital number, since it uses as much as digits as its factorization.

83322181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 28.

The square root of 83322181 is about 9128.0984328610. The cubic root of 83322181 is about 436.7707465778.

The spelling of 83322181 in words is "eighty-three million, three hundred twenty-two thousand, one hundred eighty-one".