125696171 has 4 divisors (see below), whose sum is σ = 126600600. Its totient is φ = 124791744.

The previous prime is 125696159. The next prime is 125696177. The reversal of 125696171 is 171696521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125696171 - 2⁶ = 125696107 is a prime.

It is a super-2 number, since 2×125696171² = 31599054808122482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125696177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452006 + ... + 452283.

It is an arithmetic number, because the mean of its divisors is an integer number (31650150).

Almost surely, 2^125696171 is an apocalyptic number.

125696171 is a deficient number, since it is larger than the sum of its proper divisors (904429).

125696171 is an equidigital number, since it uses as much as digits as its factorization.

125696171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904428.

The product of its digits is 22680, while the sum is 38.

The square root of 125696171 is about 11211.4303726153. The cubic root of 125696171 is about 500.9265100976.

The spelling of 125696171 in words is "one hundred twenty-five million, six hundred ninety-six thousand, one hundred seventy-one".