127142218 has 16 divisors (see below), whose sum is σ = 230779584. Its totient is φ = 51284160.

The previous prime is 127142173. The next prime is 127142231. The reversal of 127142218 is 812241721.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266868 + ... + 267343.

It is an arithmetic number, because the mean of its divisors is an integer number (14423724).

Almost surely, 2^127142218 is an apocalyptic number.

127142218 is a deficient number, since it is larger than the sum of its proper divisors (103637366).

127142218 is a wasteful number, since it uses less digits than its factorization.

127142218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534237.

The product of its digits is 1792, while the sum is 28.

The square root of 127142218 is about 11275.7358074762. The cubic root of 127142218 is about 502.8401274727.

Adding to 127142218 its reverse (812241721), we get a palindrome (939383939).

The spelling of 127142218 in words is "one hundred twenty-seven million, one hundred forty-two thousand, two hundred eighteen".