125689447 has 8 divisors (see below), whose sum is σ = 137912544. Its totient is φ = 113831328.

The previous prime is 125689441. The next prime is 125689471. The reversal of 125689447 is 744986521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125689447 - 2¹⁵ = 125656679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125689397 and 125689406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125689441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90523 + ... + 91900.

It is an arithmetic number, because the mean of its divisors is an integer number (17239068).

Almost surely, 2^125689447 is an apocalyptic number.

125689447 is a deficient number, since it is larger than the sum of its proper divisors (12223097).

125689447 is a wasteful number, since it uses less digits than its factorization.

125689447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182489.

The product of its digits is 483840, while the sum is 46.

The square root of 125689447 is about 11211.1304960740. The cubic root of 125689447 is about 500.9175777388.

The spelling of 125689447 in words is "one hundred twenty-five million, six hundred eighty-nine thousand, four hundred forty-seven".