2148547943 has 2 divisors, whose sum is σ = 2148547944. Its totient is φ = 2148547942.

The previous prime is 2148547939. The next prime is 2148547993. The reversal of 2148547943 is 3497458412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2148547943 - 2² = 2148547939 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2148547903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074273971 + 1074273972.

It is an arithmetic number, because the mean of its divisors is an integer number (1074273972).

Almost surely, 2^2148547943 is an apocalyptic number.

2148547943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148547943 is an equidigital number, since it uses as much as digits as its factorization.

2148547943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 47.

The square root of 2148547943 is about 46352.4318995239. The cubic root of 2148547943 is about 1290.3722546059.

The spelling of 2148547943 in words is "two billion, one hundred forty-eight million, five hundred forty-seven thousand, nine hundred forty-three".