125776636 has 6 divisors (see below), whose sum is σ = 220109120. Its totient is φ = 62888316.

The previous prime is 125776631. The next prime is 125776639. The reversal of 125776636 is 636677521.

It is a junction number, because it is equal to n+sod(n) for n = 125776592 and 125776601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125776631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15722076 + ... + 15722083.

Almost surely, 2^125776636 is an apocalyptic number.

It is an amenable number.

125776636 is a deficient number, since it is larger than the sum of its proper divisors (94332484).

125776636 is a wasteful number, since it uses less digits than its factorization.

125776636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31444163 (or 31444161 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The square root of 125776636 is about 11215.0183236587. The cubic root of 125776636 is about 501.0333774574.

The spelling of 125776636 in words is "one hundred twenty-five million, seven hundred seventy-six thousand, six hundred thirty-six".