43236543137 has 2 divisors, whose sum is σ = 43236543138. Its totient is φ = 43236543136.

The previous prime is 43236543083. The next prime is 43236543151. The reversal of 43236543137 is 73134563234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43054590016 + 181953121 = 207496^2 + 13489^2 .

It is a cyclic number.

It is not a de Polignac number, because 43236543137 - 2⁶ = 43236543073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43236543094 and 43236543103.

It is not a weakly prime, because it can be changed into another prime (43236543167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21618271568 + 21618271569.

It is an arithmetic number, because the mean of its divisors is an integer number (21618271569).

Almost surely, 2^43236543137 is an apocalyptic number.

It is an amenable number.

43236543137 is a deficient number, since it is larger than the sum of its proper divisors (1).

43236543137 is an equidigital number, since it uses as much as digits as its factorization.

43236543137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 41.

The spelling of 43236543137 in words is "forty-three billion, two hundred thirty-six million, five hundred forty-three thousand, one hundred thirty-seven".