125641671 has 16 divisors (see below), whose sum is σ = 174037248. Its totient is φ = 80561600.

The previous prime is 125641619. The next prime is 125641673. The reversal of 125641671 is 176146521.

It is a cyclic number.

It is not a de Polignac number, because 125641671 - 2¹¹ = 125639623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125641673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1540 + ... + 15926.

It is an arithmetic number, because the mean of its divisors is an integer number (10877328).

Almost surely, 2^125641671 is an apocalyptic number.

125641671 is a deficient number, since it is larger than the sum of its proper divisors (48395577).

125641671 is a wasteful number, since it uses less digits than its factorization.

125641671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14502.

The product of its digits is 10080, while the sum is 33.

The square root of 125641671 is about 11208.9995539299. Note that the first 3 decimals coincide. The cubic root of 125641671 is about 500.8541015238.

The spelling of 125641671 in words is "one hundred twenty-five million, six hundred forty-one thousand, six hundred seventy-one".