4543971197 has 2 divisors, whose sum is σ = 4543971198. Its totient is φ = 4543971196.

The previous prime is 4543971167. The next prime is 4543971209. The reversal of 4543971197 is 7911793454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4529424601 + 14546596 = 67301^2 + 3814^2 .

It is a cyclic number.

It is not a de Polignac number, because 4543971197 - 2¹⁶ = 4543905661 is a prime.

It is a super-2 number, since 2×4543971197² = 41295348478331225618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4543971167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2271985598 + 2271985599.

It is an arithmetic number, because the mean of its divisors is an integer number (2271985599).

Almost surely, 2^4543971197 is an apocalyptic number.

It is an amenable number.

4543971197 is a deficient number, since it is larger than the sum of its proper divisors (1).

4543971197 is an equidigital number, since it uses as much as digits as its factorization.

4543971197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 50.

The square root of 4543971197 is about 67408.9845421217. The cubic root of 4543971197 is about 1656.3236001146.

The spelling of 4543971197 in words is "four billion, five hundred forty-three million, nine hundred seventy-one thousand, one hundred ninety-seven".