2171376127 has 2 divisors, whose sum is σ = 2171376128. Its totient is φ = 2171376126.

The previous prime is 2171376089. The next prime is 2171376149. The reversal of 2171376127 is 7216731712.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2171376127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2171376227) by changing a digit.

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 as a sum of consecutive naturals, namely, 1085688063 + 1085688064.

It is an arithmetic number, because the mean of its divisors is an integer number (1085688064).

Almost surely, 2^2171376127 is an apocalyptic number.

2171376127 is a deficient number, since it is larger than the sum of its proper divisors (1).

2171376127 is an equidigital number, since it uses as much as digits as its factorization.

2171376127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24696, while the sum is 37.

The square root of 2171376127 is about 46598.0270719695. The cubic root of 2171376127 is about 1294.9262048059.

The spelling of 2171376127 in words is "two billion, one hundred seventy-one million, three hundred seventy-six thousand, one hundred twenty-seven".