125023447 has 4 divisors (see below), whose sum is σ = 125147880. Its totient is φ = 124899016.

The previous prime is 125023441. The next prime is 125023471. The reversal of 125023447 is 744320521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744320521 = 7 ⋅106331503.

It is a cyclic number.

It is not a de Polignac number, because 125023447 - 2¹⁹ = 124499159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125023441) 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, 60697 + ... + 62722.

It is an arithmetic number, because the mean of its divisors is an integer number (31286970).

Almost surely, 2^125023447 is an apocalyptic number.

125023447 is a deficient number, since it is larger than the sum of its proper divisors (124433).

125023447 is a wasteful number, since it uses less digits than its factorization.

125023447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124432.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 125023447 is about 11181.3884200487. The cubic root of 125023447 is about 500.0312607122.

Adding to 125023447 its reverse (744320521), we get a palindrome (869343968).

The spelling of 125023447 in words is "one hundred twenty-five million, twenty-three thousand, four hundred forty-seven".