2196542923 has 2 divisors, whose sum is σ = 2196542924. Its totient is φ = 2196542922.

The previous prime is 2196542869. The next prime is 2196542927. The reversal of 2196542923 is 3292456912.

2196542923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2196542923 - 2²⁵ = 2162988491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2196542923.

It is not a weakly prime, because it can be changed into another prime (2196542927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098271461 + 1098271462.

It is an arithmetic number, because the mean of its divisors is an integer number (1098271462).

Almost surely, 2^2196542923 is an apocalyptic number.

2196542923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2196542923 is an equidigital number, since it uses as much as digits as its factorization.

2196542923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 43.

The square root of 2196542923 is about 46867.2905446859. The cubic root of 2196542923 is about 1299.9098404928.

The spelling of 2196542923 in words is "two billion, one hundred ninety-six million, five hundred forty-two thousand, nine hundred twenty-three".