127919912 has 8 divisors (see below), whose sum is σ = 239849850. Its totient is φ = 63959952.

The previous prime is 127919879. The next prime is 127919921. The reversal of 127919912 is 219919721.

It can be written as a sum of positive squares in only one way, i.e., 115906756 + 12013156 = 10766^2 + 3466^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 127919912.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7994987 + ... + 7995002.

Almost surely, 2^127919912 is an apocalyptic number.

It is an amenable number.

127919912 is a deficient number, since it is larger than the sum of its proper divisors (111929938).

127919912 is a wasteful number, since it uses less digits than its factorization.

127919912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15989995 (or 15989991 counting only the distinct ones).

The product of its digits is 20412, while the sum is 41.

The square root of 127919912 is about 11310.1685221751. The cubic root of 127919912 is about 503.8632891150.

The spelling of 127919912 in words is "one hundred twenty-seven million, nine hundred nineteen thousand, nine hundred twelve".