2143132109 has 2 divisors, whose sum is σ = 2143132110. Its totient is φ = 2143132108.

The previous prime is 2143132087. The next prime is 2143132133. The reversal of 2143132109 is 9012313412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2058436900 + 84695209 = 45370^2 + 9203^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143132109 - 2¹⁶ = 2143066573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143132139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071566054 + 1071566055.

It is an arithmetic number, because the mean of its divisors is an integer number (1071566055).

Almost surely, 2^2143132109 is an apocalyptic number.

It is an amenable number.

2143132109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143132109 is an equidigital number, since it uses as much as digits as its factorization.

2143132109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2143132109 is about 46293.9748671466. The cubic root of 2143132109 is about 1289.2871307204.

The spelling of 2143132109 in words is "two billion, one hundred forty-three million, one hundred thirty-two thousand, one hundred nine".