125171601 has 16 divisors (see below), whose sum is σ = 176855040. Its totient is φ = 78526800.

The previous prime is 125171513. The next prime is 125171609. The reversal of 125171601 is 106171521.

It is not a de Polignac number, because 125171601 - 2⁹ = 125171089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125171609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1336 + ... + 15878.

It is an arithmetic number, because the mean of its divisors is an integer number (11053440).

Almost surely, 2^125171601 is an apocalyptic number.

It is an amenable number.

125171601 is a deficient number, since it is larger than the sum of its proper divisors (51683439).

125171601 is a wasteful number, since it uses less digits than its factorization.

125171601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14716.

The product of its (nonzero) digits is 420, while the sum is 24.

The square root of 125171601 is about 11188.0114855143. The cubic root of 125171601 is about 500.2286967130.

The spelling of 125171601 in words is "one hundred twenty-five million, one hundred seventy-one thousand, six hundred one".