8426149 has 2 divisors, whose sum is σ = 8426150. Its totient is φ = 8426148.

The previous prime is 8426147. The next prime is 8426161. The reversal of 8426149 is 9416248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4485924 + 3940225 = 2118^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 8426149 - 2¹ = 8426147 is a prime.

Together with 8426147, 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 (8426147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4213074 + 4213075.

It is an arithmetic number, because the mean of its divisors is an integer number (4213075).

Almost surely, 2^8426149 is an apocalyptic number.

It is an amenable number.

8426149 is a deficient number, since it is larger than the sum of its proper divisors (1).

8426149 is an equidigital number, since it uses as much as digits as its factorization.

8426149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 34.

The square root of 8426149 is about 2902.7829750086. The cubic root of 8426149 is about 203.4899873733.

Subtracting 8426149 from its reverse (9416248), we obtain a palindrome (990099).

The spelling of 8426149 in words is "eight million, four hundred twenty-six thousand, one hundred forty-nine".