2197125943 has 2 divisors, whose sum is σ = 2197125944. Its totient is φ = 2197125942.

The previous prime is 2197125941. The next prime is 2197125947. The reversal of 2197125943 is 3495217912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2197125943 - 2¹ = 2197125941 is a prime.

Together with 2197125941, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2197125943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2197125941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098562971 + 1098562972.

It is an arithmetic number, because the mean of its divisors is an integer number (1098562972).

Almost surely, 2^2197125943 is an apocalyptic number.

2197125943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197125943 is an equidigital number, since it uses as much as digits as its factorization.

2197125943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 2197125943 is about 46873.5100349867. The cubic root of 2197125943 is about 1300.0248403538.

The spelling of 2197125943 in words is "two billion, one hundred ninety-seven million, one hundred twenty-five thousand, nine hundred forty-three".