125447 has 4 divisors (see below), whose sum is σ = 143376. Its totient is φ = 107520.

The previous prime is 125441. The next prime is 125453. The reversal of 125447 is 744521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744521 = 59 ⋅12619.

It is an interprime number because it is at equal distance from previous prime (125441) and next prime (125453).

It is not a de Polignac number, because 125447 - 2⁶ = 125383 is a prime.

It is a d-powerful number, because it can be written as 1 + 2⁹ + 4³ + 5⁵ + 4⁶ + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 125447.

It is not an unprimeable number, because it can be changed into a prime (125441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8954 + ... + 8967.

It is an arithmetic number, because the mean of its divisors is an integer number (35844).

2¹²⁵⁴⁴⁷ is an apocalyptic number.

125447 is a deficient number, since it is larger than the sum of its proper divisors (17929).

125447 is an equidigital number, since it uses as much as digits as its factorization.

125447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17928.

The product of its digits is 1120, while the sum is 23.

The square root of 125447 is about 354.1849799187. The cubic root of 125447 is about 50.0595290976.

Adding to 125447 its reverse (744521), we get a palindrome (869968).

The spelling of 125447 in words is "one hundred twenty-five thousand, four hundred forty-seven".