125408784 has 40 divisors (see below), whose sum is σ = 330871680. Its totient is φ = 40912768.

The previous prime is 125408749. The next prime is 125408809. The reversal of 125408784 is 487804521.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25539 + ... + 30050.

It is an arithmetic number, because the mean of its divisors is an integer number (8271792).

Almost surely, 2^125408784 is an apocalyptic number.

It is an amenable number.

125408784 is an abundant number, since it is smaller than the sum of its proper divisors (205462896).

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

125408784 is a wasteful number, since it uses less digits than its factorization.

125408784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55647 (or 55641 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 125408784 is about 11198.6063418624. The cubic root of 125408784 is about 500.5444522616.

The spelling of 125408784 in words is "one hundred twenty-five million, four hundred eight thousand, seven hundred eighty-four".