43134442139 has 2 divisors, whose sum is σ = 43134442140. Its totient is φ = 43134442138.

The previous prime is 43134442129. The next prime is 43134442157. The reversal of 43134442139 is 93124443134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43134442139 - 2¹² = 43134438043 is a prime.

It is not a weakly prime, because it can be changed into another prime (43134442129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21567221069 + 21567221070.

It is an arithmetic number, because the mean of its divisors is an integer number (21567221070).

Almost surely, 2^43134442139 is an apocalyptic number.

43134442139 is a deficient number, since it is larger than the sum of its proper divisors (1).

43134442139 is an equidigital number, since it uses as much as digits as its factorization.

43134442139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 38.

The spelling of 43134442139 in words is "forty-three billion, one hundred thirty-four million, four hundred forty-two thousand, one hundred thirty-nine".