43140440141 has 2 divisors, whose sum is σ = 43140440142. Its totient is φ = 43140440140.

The previous prime is 43140440087. The next prime is 43140440179. The reversal of 43140440141 is 14104404134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24197046916 + 18943393225 = 155554^2 + 137635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43140440141 is a prime.

It is a super-2 number, since 2×43140440141² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43140440141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43140440641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21570220070 + 21570220071.

It is an arithmetic number, because the mean of its divisors is an integer number (21570220071).

Almost surely, 2^43140440141 is an apocalyptic number.

It is an amenable number.

43140440141 is a deficient number, since it is larger than the sum of its proper divisors (1).

43140440141 is an equidigital number, since it uses as much as digits as its factorization.

43140440141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 43140440141 its reverse (14104404134), we get a palindrome (57244844275).

The spelling of 43140440141 in words is "forty-three billion, one hundred forty million, four hundred forty thousand, one hundred forty-one".