8126149 has 2 divisors, whose sum is σ = 8126150. Its totient is φ = 8126148.

The previous prime is 8126147. The next prime is 8126161. The reversal of 8126149 is 9416218.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4950625 + 3175524 = 2225^2 + 1782^2 .

It is a cyclic number.

It is not a de Polignac number, because 8126149 - 2¹ = 8126147 is a prime.

Together with 8126147, it forms a pair of twin primes.

It is equal to p₅₄₇₆₉₀ and since 8126149 and 547690 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8126149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8126143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4063074 + 4063075.

It is an arithmetic number, because the mean of its divisors is an integer number (4063075).

Almost surely, 2^8126149 is an apocalyptic number.

It is an amenable number.

8126149 is a deficient number, since it is larger than the sum of its proper divisors (1).

8126149 is an equidigital number, since it uses as much as digits as its factorization.

8126149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 31.

The square root of 8126149 is about 2850.6401035557. The cubic root of 8126149 is about 201.0457640241.

The spelling of 8126149 in words is "eight million, one hundred twenty-six thousand, one hundred forty-nine".