125424305 has 4 divisors (see below), whose sum is σ = 150509172. Its totient is φ = 100339440.

The previous prime is 125424281. The next prime is 125424319. The reversal of 125424305 is 503424521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51739249 + 73685056 = 7193^2 + 8584^2 .

It is not a de Polignac number, because 125424305 - 2⁶ = 125424241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12542426 + ... + 12542435.

It is an arithmetic number, because the mean of its divisors is an integer number (37627293).

Almost surely, 2^125424305 is an apocalyptic number.

It is an amenable number.

125424305 is a deficient number, since it is larger than the sum of its proper divisors (25084867).

125424305 is an equidigital number, since it uses as much as digits as its factorization.

125424305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25084866.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 125424305 is about 11199.2993084389. The cubic root of 125424305 is about 500.5651010809.

Adding to 125424305 its reverse (503424521), we get a palindrome (628848826).

The spelling of 125424305 in words is "one hundred twenty-five million, four hundred twenty-four thousand, three hundred five".