2162343409 has 2 divisors, whose sum is σ = 2162343410. Its totient is φ = 2162343408.

The previous prime is 2162343397. The next prime is 2162343427. The reversal of 2162343409 is 9043432612.

It is a happy number.

2162343409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1346669809 + 815673600 = 36697^2 + 28560^2 .

It is a cyclic number.

It is not a de Polignac number, because 2162343409 - 2²³ = 2153954801 is a prime.

It is not a weakly prime, because it can be changed into another prime (2162343499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081171704 + 1081171705.

It is an arithmetic number, because the mean of its divisors is an integer number (1081171705).

Almost surely, 2^2162343409 is an apocalyptic number.

It is an amenable number.

2162343409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162343409 is an equidigital number, since it uses as much as digits as its factorization.

2162343409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 2162343409 is about 46501.0043870022. The cubic root of 2162343409 is about 1293.1281192910.

The spelling of 2162343409 in words is "two billion, one hundred sixty-two million, three hundred forty-three thousand, four hundred nine".