127765636 has 12 divisors (see below), whose sum is σ = 226739520. Its totient is φ = 62982920.

The previous prime is 127765613. The next prime is 127765637. The reversal of 127765636 is 636567721.

It is a junction number, because it is equal to n+sod(n) for n = 127765592 and 127765601.

It is not an unprimeable number, because it can be changed into a prime (127765637) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 224656 + ... + 225223.

It is an arithmetic number, because the mean of its divisors is an integer number (18894960).

Almost surely, 2^127765636 is an apocalyptic number.

It is an amenable number.

127765636 is a deficient number, since it is larger than the sum of its proper divisors (98973884).

127765636 is a wasteful number, since it uses less digits than its factorization.

127765636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449954 (or 449952 counting only the distinct ones).

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

The square root of 127765636 is about 11303.3462302099. The cubic root of 127765636 is about 503.6606485655.

The spelling of 127765636 in words is "one hundred twenty-seven million, seven hundred sixty-five thousand, six hundred thirty-six".