2165140127 has 2 divisors, whose sum is σ = 2165140128. Its totient is φ = 2165140126.

The previous prime is 2165140091. The next prime is 2165140141. The reversal of 2165140127 is 7210415612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2165140127 - 2⁸ = 2165139871 is a prime.

It is a super-2 number, since 2×2165140127² = 9375663539091152258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2165140127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2165145127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082570063 + 1082570064.

It is an arithmetic number, because the mean of its divisors is an integer number (1082570064).

Almost surely, 2^2165140127 is an apocalyptic number.

2165140127 is a deficient number, since it is larger than the sum of its proper divisors (1).

2165140127 is an equidigital number, since it uses as much as digits as its factorization.

2165140127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 2165140127 is about 46531.0662568568. The cubic root of 2165140127 is about 1293.6853783930.

Adding to 2165140127 its reverse (7210415612), we get a palindrome (9375555739).

The spelling of 2165140127 in words is "two billion, one hundred sixty-five million, one hundred forty thousand, one hundred twenty-seven".