127243768 has 8 divisors (see below), whose sum is σ = 238582080. Its totient is φ = 63621880.

The previous prime is 127243757. The next prime is 127243783. The reversal of 127243768 is 867342721.

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 127243768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7952728 + ... + 7952743.

It is an arithmetic number, because the mean of its divisors is an integer number (29822760).

Almost surely, 2^127243768 is an apocalyptic number.

It is an amenable number.

127243768 is a deficient number, since it is larger than the sum of its proper divisors (111338312).

127243768 is a wasteful number, since it uses less digits than its factorization.

127243768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15905477 (or 15905473 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 127243768 is about 11280.2379407528. The cubic root of 127243768 is about 502.9739666406.

The spelling of 127243768 in words is "one hundred twenty-seven million, two hundred forty-three thousand, seven hundred sixty-eight".