125022447 has 20 divisors (see below), whose sum is σ = 203741736. Its totient is φ = 75770640.

The previous prime is 125022439. The next prime is 125022461. The reversal of 125022447 is 744220521.

It is not a de Polignac number, because 125022447 - 2³ = 125022439 is a prime.

It is a super-2 number, since 2×125022447² = 31261224507735618, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 125022447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125022487) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 69268 + ... + 71049.

Almost surely, 2^125022447 is an apocalyptic number.

125022447 is a deficient number, since it is larger than the sum of its proper divisors (78719289).

125022447 is a wasteful number, since it uses less digits than its factorization.

125022447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140340 (or 140331 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 125022447 is about 11181.3437027935. The cubic root of 125022447 is about 500.0299275420.

Adding to 125022447 its reverse (744220521), we get a palindrome (869242968).

The spelling of 125022447 in words is "one hundred twenty-five million, twenty-two thousand, four hundred forty-seven".