127138918 has 16 divisors (see below), whose sum is σ = 201600000. Its totient is φ = 59967432.

The previous prime is 127138897. The next prime is 127138927. The reversal of 127138918 is 819831721.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 2083 + ... + 16081.

It is an arithmetic number, because the mean of its divisors is an integer number (12600000).

Almost surely, 2^127138918 is an apocalyptic number.

127138918 is a deficient number, since it is larger than the sum of its proper divisors (74461082).

127138918 is a wasteful number, since it uses less digits than its factorization.

127138918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14259.

The product of its digits is 24192, while the sum is 40.

The square root of 127138918 is about 11275.5894746128. The cubic root of 127138918 is about 502.8357769986.

The spelling of 127138918 in words is "one hundred twenty-seven million, one hundred thirty-eight thousand, nine hundred eighteen".