8149123 has 2 divisors, whose sum is σ = 8149124. Its totient is φ = 8149122.

The previous prime is 8149111. The next prime is 8149129. The reversal of 8149123 is 3219418.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8149123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8149091 and 8149100.

It is not a weakly prime, because it can be changed into another prime (8149129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4074561 + 4074562.

It is an arithmetic number, because the mean of its divisors is an integer number (4074562).

Almost surely, 2^8149123 is an apocalyptic number.

8149123 is a deficient number, since it is larger than the sum of its proper divisors (1).

8149123 is an equidigital number, since it uses as much as digits as its factorization.

8149123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The square root of 8149123 is about 2854.6668807411. Note that the first 3 decimals coincide. The cubic root of 8149123 is about 201.2350492346.

The spelling of 8149123 in words is "eight million, one hundred forty-nine thousand, one hundred twenty-three".