2171461129 has 2 divisors, whose sum is σ = 2171461130. Its totient is φ = 2171461128.

The previous prime is 2171461099. The next prime is 2171461133. The reversal of 2171461129 is 9211641712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1793353104 + 378108025 = 42348^2 + 19445^2 .

It is a cyclic number.

It is not a de Polignac number, because 2171461129 - 2⁹ = 2171460617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2171461094 and 2171461103.

It is not a weakly prime, because it can be changed into another prime (2171461169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085730564 + 1085730565.

It is an arithmetic number, because the mean of its divisors is an integer number (1085730565).

Almost surely, 2^2171461129 is an apocalyptic number.

It is an amenable number.

2171461129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2171461129 is an equidigital number, since it uses as much as digits as its factorization.

2171461129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 34.

The square root of 2171461129 is about 46598.9391402852. The cubic root of 2171461129 is about 1294.9431019062.

The spelling of 2171461129 in words is "two billion, one hundred seventy-one million, four hundred sixty-one thousand, one hundred twenty-nine".