125769728 has 96 divisors (see below), whose sum is σ = 297722880. Its totient is φ = 51978240.

The previous prime is 125769719. The next prime is 125769733. The reversal of 125769728 is 827967521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444275 + ... + 444557.

It is an arithmetic number, because the mean of its divisors is an integer number (3101280).

Almost surely, 2^125769728 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 125769728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148861440).

125769728 is an abundant number, since it is smaller than the sum of its proper divisors (171953152).

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

125769728 is an equidigital number, since it uses as much as digits as its factorization.

125769728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 323 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The square root of 125769728 is about 11214.7103395496. The cubic root of 125769728 is about 501.0242045775.

The spelling of 125769728 in words is "one hundred twenty-five million, seven hundred sixty-nine thousand, seven hundred twenty-eight".