125843171 has 2 divisors, whose sum is σ = 125843172. Its totient is φ = 125843170.

The previous prime is 125843161. The next prime is 125843173. The reversal of 125843171 is 171348521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125843171 - 2²⁶ = 58734307 is a prime.

Together with 125843173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125843173) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62921585 + 62921586.

It is an arithmetic number, because the mean of its divisors is an integer number (62921586).

Almost surely, 2^125843171 is an apocalyptic number.

125843171 is a deficient number, since it is larger than the sum of its proper divisors (1).

125843171 is an equidigital number, since it uses as much as digits as its factorization.

125843171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 32.

The square root of 125843171 is about 11217.9842663466. The cubic root of 125843171 is about 501.1217096531.

The spelling of 125843171 in words is "one hundred twenty-five million, eight hundred forty-three thousand, one hundred seventy-one".