125228224 has 84 divisors (see below), whose sum is σ = 277552912. Its totient is φ = 56010240.

The previous prime is 125228219. The next prime is 125228237. The reversal of 125228224 is 422822521.

125228224 = 1932² + 1933² + ... + 1964².

It is a junction number, because it is equal to n+sod(n) for n = 125228192 and 125228201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 797554 + ... + 797710.

Almost surely, 2^125228224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125228224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138776456).

125228224 is an abundant number, since it is smaller than the sum of its proper divisors (152324688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125228224 is a wasteful number, since it uses less digits than its factorization.

125228224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 273 counting only the distinct ones).

The product of its digits is 5120, while the sum is 28.

The square root of 125228224 is about 11190.5417205781. The cubic root of 125228224 is about 500.3041136589.

The spelling of 125228224 in words is "one hundred twenty-five million, two hundred twenty-eight thousand, two hundred twenty-four".