8195189 has 2 divisors, whose sum is σ = 8195190. Its totient is φ = 8195188.

The previous prime is 8195179. The next prime is 8195227. The reversal of 8195189 is 9815918.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5499025 + 2696164 = 2345^2 + 1642^2 .

It is a cyclic number.

It is not a de Polignac number, because 8195189 - 2⁸ = 8194933 is a prime.

It is a super-2 number, since 2×8195189² = 134322245491442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8195119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4097594 + 4097595.

It is an arithmetic number, because the mean of its divisors is an integer number (4097595).

Almost surely, 2^8195189 is an apocalyptic number.

It is an amenable number.

8195189 is a deficient number, since it is larger than the sum of its proper divisors (1).

8195189 is an equidigital number, since it uses as much as digits as its factorization.

8195189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 41.

The square root of 8195189 is about 2862.7240523669. The cubic root of 8195189 is about 201.6135227161.

The spelling of 8195189 in words is "eight million, one hundred ninety-five thousand, one hundred eighty-nine".