8149457 has 2 divisors, whose sum is σ = 8149458. Its totient is φ = 8149456.

The previous prime is 8149381. The next prime is 8149459. The reversal of 8149457 is 7549418.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4343056 + 3806401 = 2084^2 + 1951^2 .

It is a cyclic number.

It is not a de Polignac number, because 8149457 - 2²² = 3955153 is a prime.

Together with 8149459, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8149457.

It is not a weakly prime, because it can be changed into another prime (8149459) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4074728 + 4074729.

It is an arithmetic number, because the mean of its divisors is an integer number (4074729).

Almost surely, 2^8149457 is an apocalyptic number.

It is an amenable number.

8149457 is a deficient number, since it is larger than the sum of its proper divisors (1).

8149457 is an equidigital number, since it uses as much as digits as its factorization.

8149457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 38.

The square root of 8149457 is about 2854.7253808379. The cubic root of 8149457 is about 201.2377984707.

The spelling of 8149457 in words is "eight million, one hundred forty-nine thousand, four hundred fifty-seven".