127157868 has 36 divisors (see below), whose sum is σ = 323127168. Its totient is φ = 42161760.

The previous prime is 127157867. The next prime is 127157873. The reversal of 127157868 is 868751721.

It is a happy number.

127157868 is a `hidden beast` number, since 1 + 2 + 71 + 578 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (127157867) 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 11 ways as a sum of consecutive naturals, for example, 2371 + ... + 16122.

Almost surely, 2^127157868 is an apocalyptic number.

127157868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

127157868 is an abundant number, since it is smaller than the sum of its proper divisors (195969300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127157868 is a wasteful number, since it uses less digits than its factorization.

127157868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18694 (or 18689 counting only the distinct ones).

The product of its digits is 188160, while the sum is 45.

The square root of 127157868 is about 11276.4297541376. The cubic root of 127157868 is about 502.8607582415.

The spelling of 127157868 in words is "one hundred twenty-seven million, one hundred fifty-seven thousand, eight hundred sixty-eight".