125424445 has 8 divisors (see below), whose sum is σ = 151167960. Its totient is φ = 99900480.

The previous prime is 125424443. The next prime is 125424473. The reversal of 125424445 is 544424521.

It can be written as a sum of positive squares in 4 ways, for example, as 15824484 + 109599961 = 3978^2 + 10469^2 .

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

It is not a de Polignac number, because 125424445 - 2¹ = 125424443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125424443) 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, 53626 + ... + 55915.

It is an arithmetic number, because the mean of its divisors is an integer number (18895995).

Almost surely, 2^125424445 is an apocalyptic number.

It is an amenable number.

125424445 is a deficient number, since it is larger than the sum of its proper divisors (25743515).

125424445 is a wasteful number, since it uses less digits than its factorization.

125424445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109775.

The product of its digits is 25600, while the sum is 31.

The square root of 125424445 is about 11199.3055588282. The cubic root of 125424445 is about 500.5652873263.

Adding to 125424445 its reverse (544424521), we get a palindrome (669848966).

The spelling of 125424445 in words is "one hundred twenty-five million, four hundred twenty-four thousand, four hundred forty-five".