43141340197 has 2 divisors, whose sum is σ = 43141340198. Its totient is φ = 43141340196.

The previous prime is 43141340191. The next prime is 43141340201. The reversal of 43141340197 is 79104314134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30712212001 + 12429128196 = 175249^2 + 111486^2 .

It is a cyclic number.

It is not a de Polignac number, because 43141340197 - 2¹⁹ = 43140815909 is a prime.

It is a super-2 number, since 2×43141340197² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43141340191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21570670098 + 21570670099.

It is an arithmetic number, because the mean of its divisors is an integer number (21570670099).

Almost surely, 2^43141340197 is an apocalyptic number.

It is an amenable number.

43141340197 is a deficient number, since it is larger than the sum of its proper divisors (1).

43141340197 is an equidigital number, since it uses as much as digits as its factorization.

43141340197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 43141340197 in words is "forty-three billion, one hundred forty-one million, three hundred forty thousand, one hundred ninety-seven".