43272107129 has 2 divisors, whose sum is σ = 43272107130. Its totient is φ = 43272107128.

The previous prime is 43272107119. The next prime is 43272107141. The reversal of 43272107129 is 92170127234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41923381504 + 1348725625 = 204752^2 + 36725^2 .

It is a cyclic number.

It is not a de Polignac number, because 43272107129 - 2²⁸ = 43003671673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43272107092 and 43272107101.

It is not a weakly prime, because it can be changed into another prime (43272107119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21636053564 + 21636053565.

It is an arithmetic number, because the mean of its divisors is an integer number (21636053565).

Almost surely, 2^43272107129 is an apocalyptic number.

It is an amenable number.

43272107129 is a deficient number, since it is larger than the sum of its proper divisors (1).

43272107129 is an equidigital number, since it uses as much as digits as its factorization.

43272107129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 43272107129 in words is "forty-three billion, two hundred seventy-two million, one hundred seven thousand, one hundred twenty-nine".