2138127275 has 12 divisors (see below), whose sum is σ = 2656141752. Its totient is φ = 1707363840.

The previous prime is 2138127223. The next prime is 2138127331. The reversal of 2138127275 is 5727218312.

It is not a de Polignac number, because 2138127275 - 2¹⁰ = 2138126251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64502 + ... + 91851.

It is an arithmetic number, because the mean of its divisors is an integer number (221345146).

Almost surely, 2^2138127275 is an apocalyptic number.

2138127275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2138127275 is a deficient number, since it is larger than the sum of its proper divisors (518014477).

2138127275 is a wasteful number, since it uses less digits than its factorization.

2138127275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156910 (or 156905 counting only the distinct ones).

The product of its digits is 47040, while the sum is 38.

The square root of 2138127275 is about 46239.8883541040. Note that the first 3 decimals coincide. The cubic root of 2138127275 is about 1288.2827288737.

The spelling of 2138127275 in words is "two billion, one hundred thirty-eight million, one hundred twenty-seven thousand, two hundred seventy-five".