125982784 has 28 divisors (see below), whose sum is σ = 264705084. Its totient is φ = 59285504.

The previous prime is 125982761. The next prime is 125982797. The reversal of 125982784 is 487289521.

It can be written as a sum of positive squares in 2 ways, for example, as 36869184 + 89113600 = 6072^2 + 9440^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56809 + ... + 58984.

It is an arithmetic number, because the mean of its divisors is an integer number (9453753).

Almost surely, 2^125982784 is an apocalyptic number.

It is an amenable number.

125982784 is an abundant number, since it is smaller than the sum of its proper divisors (138722300).

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

125982784 is a wasteful number, since it uses less digits than its factorization.

125982784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115822 (or 115812 counting only the distinct ones).

The product of its digits is 322560, while the sum is 46.

The square root of 125982784 is about 11224.2052725349. The cubic root of 125982784 is about 501.3069594043.

The spelling of 125982784 in words is "one hundred twenty-five million, nine hundred eighty-two thousand, seven hundred eighty-four".