125261671 has 4 divisors (see below), whose sum is σ = 125287344. Its totient is φ = 125236000.

The previous prime is 125261663. The next prime is 125261681. The reversal of 125261671 is 176162521.

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 125261671 - 2³ = 125261663 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125261621) 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, 3010 + ... + 16111.

It is an arithmetic number, because the mean of its divisors is an integer number (31321836).

Almost surely, 2^125261671 is an apocalyptic number.

125261671 is a deficient number, since it is larger than the sum of its proper divisors (25673).

125261671 is an equidigital number, since it uses as much as digits as its factorization.

125261671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25672.

The product of its digits is 5040, while the sum is 31.

The square root of 125261671 is about 11192.0360524795. The cubic root of 125261671 is about 500.3486514944.

The spelling of 125261671 in words is "one hundred twenty-five million, two hundred sixty-one thousand, six hundred seventy-one".