125405768 has 8 divisors (see below), whose sum is σ = 235135830. Its totient is φ = 62702880.

The previous prime is 125405747. The next prime is 125405801. The reversal of 125405768 is 867504521.

It can be written as a sum of positive squares in only one way, i.e., 75307684 + 50098084 = 8678^2 + 7078^2 .

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

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 as a sum of consecutive naturals, namely, 7837853 + ... + 7837868.

Almost surely, 2^125405768 is an apocalyptic number.

It is an amenable number.

125405768 is a deficient number, since it is larger than the sum of its proper divisors (109730062).

125405768 is a wasteful number, since it uses less digits than its factorization.

125405768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15675727 (or 15675723 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 125405768 is about 11198.4716814394. The cubic root of 125405768 is about 500.5404396395.

The spelling of 125405768 in words is "one hundred twenty-five million, four hundred five thousand, seven hundred sixty-eight".