43565072141 has 2 divisors, whose sum is σ = 43565072142. Its totient is φ = 43565072140.

The previous prime is 43565072039. The next prime is 43565072147. The reversal of 43565072141 is 14127056534.

43565072141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33925956100 + 9639116041 = 184190^2 + 98179^2 .

It is a cyclic number.

It is not a de Polignac number, because 43565072141 - 2¹⁰ = 43565071117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43565072095 and 43565072104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43565072147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21782536070 + 21782536071.

It is an arithmetic number, because the mean of its divisors is an integer number (21782536071).

Almost surely, 2^43565072141 is an apocalyptic number.

It is an amenable number.

43565072141 is a deficient number, since it is larger than the sum of its proper divisors (1).

43565072141 is an equidigital number, since it uses as much as digits as its factorization.

43565072141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 43565072141 in words is "forty-three billion, five hundred sixty-five million, seventy-two thousand, one hundred forty-one".