8147123 has 2 divisors, whose sum is σ = 8147124. Its totient is φ = 8147122.

The previous prime is 8147101. The next prime is 8147137. The reversal of 8147123 is 3217418.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8147123 - 2⁶ = 8147059 is a prime.

It is a super-2 number, since 2×8147123² = 132751226354258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 8147092 and 8147101.

It is not a weakly prime, because it can be changed into another prime (8147323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4073561 + 4073562.

It is an arithmetic number, because the mean of its divisors is an integer number (4073562).

Almost surely, 2^8147123 is an apocalyptic number.

8147123 is a deficient number, since it is larger than the sum of its proper divisors (1).

8147123 is an equidigital number, since it uses as much as digits as its factorization.

8147123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 26.

The square root of 8147123 is about 2854.3165556749. The cubic root of 8147123 is about 201.2185851714.

The spelling of 8147123 in words is "eight million, one hundred forty-seven thousand, one hundred twenty-three".