8188249 has 2 divisors, whose sum is σ = 8188250. Its totient is φ = 8188248.

The previous prime is 8188231. The next prime is 8188261. The reversal of 8188249 is 9428818.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8179600 + 8649 = 2860^2 + 93^2 .

It is a cyclic number.

It is not a de Polignac number, because 8188249 - 2¹³ = 8180057 is a prime.

It is a Chen prime.

8188249 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8188049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4094124 + 4094125.

It is an arithmetic number, because the mean of its divisors is an integer number (4094125).

Almost surely, 2^8188249 is an apocalyptic number.

It is an amenable number.

8188249 is a deficient number, since it is larger than the sum of its proper divisors (1).

8188249 is an equidigital number, since it uses as much as digits as its factorization.

8188249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 40.

The square root of 8188249 is about 2861.5116634394. The cubic root of 8188249 is about 201.5565952920.

The spelling of 8188249 in words is "eight million, one hundred eighty-eight thousand, two hundred forty-nine".