8081197 has 2 divisors, whose sum is σ = 8081198. Its totient is φ = 8081196.

The previous prime is 8081153. The next prime is 8081221. The reversal of 8081197 is 7911808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6702921 + 1378276 = 2589^2 + 1174^2 .

It is a cyclic number.

It is not a de Polignac number, because 8081197 - 2¹⁹ = 7556909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8081497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4040598 + 4040599.

It is an arithmetic number, because the mean of its divisors is an integer number (4040599).

Almost surely, 2^8081197 is an apocalyptic number.

It is an amenable number.

8081197 is a deficient number, since it is larger than the sum of its proper divisors (1).

8081197 is an equidigital number, since it uses as much as digits as its factorization.

8081197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 8081197 is about 2842.7446244783. The cubic root of 8081197 is about 200.6743652684.

It can be divided in two parts, 80811 and 97, that added together give a palindrome (80908).

The spelling of 8081197 in words is "eight million, eighty-one thousand, one hundred ninety-seven".