125129528 has 8 divisors (see below), whose sum is σ = 234617880. Its totient is φ = 62564760.

The previous prime is 125129509. The next prime is 125129531. The reversal of 125129528 is 825921521.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7820588 + ... + 7820603.

It is an arithmetic number, because the mean of its divisors is an integer number (29327235).

Almost surely, 2^125129528 is an apocalyptic number.

It is an amenable number.

125129528 is a deficient number, since it is larger than the sum of its proper divisors (109488352).

125129528 is a wasteful number, since it uses less digits than its factorization.

125129528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15641197 (or 15641193 counting only the distinct ones).

The product of its digits is 14400, while the sum is 35.

The square root of 125129528 is about 11186.1310559103. The cubic root of 125129528 is about 500.1726443810.

The spelling of 125129528 in words is "one hundred twenty-five million, one hundred twenty-nine thousand, five hundred twenty-eight".