127144857 has 24 divisors (see below), whose sum is σ = 203572992. Its totient is φ = 70308000.

The previous prime is 127144847. The next prime is 127144861. The reversal of 127144857 is 758441721.

It is not a de Polignac number, because 127144857 - 2⁴ = 127144841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127144807) 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 23 ways as a sum of consecutive naturals, for example, 9394 + ... + 18507.

It is an arithmetic number, because the mean of its divisors is an integer number (8482208).

Almost surely, 2^127144857 is an apocalyptic number.

It is an amenable number.

127144857 is a deficient number, since it is larger than the sum of its proper divisors (76428135).

127144857 is a wasteful number, since it uses less digits than its factorization.

127144857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27949 (or 27942 counting only the distinct ones).

The product of its digits is 62720, while the sum is 39.

The square root of 127144857 is about 11275.8528280570. The cubic root of 127144857 is about 502.8436064795.

It can be divided in two parts, 12714 and 4857, that added together give a palindrome (17571).

The spelling of 127144857 in words is "one hundred twenty-seven million, one hundred forty-four thousand, eight hundred fifty-seven".