125337728 has 16 divisors (see below), whose sum is σ = 249696510. Its totient is φ = 62668800.

The previous prime is 125337727. The next prime is 125337731. The reversal of 125337728 is 827733521.

It can be written as a sum of positive squares in only one way, i.e., 101445184 + 23892544 = 10072^2 + 4888^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 125337691 and 125337700.

It is not an unprimeable number, because it can be changed into a prime (125337727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489473 + ... + 489728.

Almost surely, 2^125337728 is an apocalyptic number.

It is an amenable number.

125337728 is a deficient number, since it is larger than the sum of its proper divisors (124358782).

125337728 is an frugal number, since it uses more digits than its factorization.

125337728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979215 (or 979203 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 125337728 is about 11195.4333547210. The cubic root of 125337728 is about 500.4498990603.

The spelling of 125337728 in words is "one hundred twenty-five million, three hundred thirty-seven thousand, seven hundred twenty-eight".