43401134429 has 2 divisors, whose sum is σ = 43401134430. Its totient is φ = 43401134428.

The previous prime is 43401134407. The next prime is 43401134431. The reversal of 43401134429 is 92443110434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22268697529 + 21132436900 = 149227^2 + 145370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43401134429 is a prime.

Together with 43401134431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43401134489) 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, 21700567214 + 21700567215.

It is an arithmetic number, because the mean of its divisors is an integer number (21700567215).

Almost surely, 2^43401134429 is an apocalyptic number.

It is an amenable number.

43401134429 is a deficient number, since it is larger than the sum of its proper divisors (1).

43401134429 is an equidigital number, since it uses as much as digits as its factorization.

43401134429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 43401134429 in words is "forty-three billion, four hundred one million, one hundred thirty-four thousand, four hundred twenty-nine".