134431543 has 2 divisors, whose sum is σ = 134431544. Its totient is φ = 134431542.

The previous prime is 134431537. The next prime is 134431567. The reversal of 134431543 is 345134431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134431543 - 2⁵ = 134431511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134431523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67215771 + 67215772.

It is an arithmetic number, because the mean of its divisors is an integer number (67215772).

Almost surely, 2^134431543 is an apocalyptic number.

134431543 is a deficient number, since it is larger than the sum of its proper divisors (1).

134431543 is an equidigital number, since it uses as much as digits as its factorization.

134431543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 28.

The square root of 134431543 is about 11594.4617382611. The cubic root of 134431543 is about 512.2717355872.

Adding to 134431543 its reverse (345134431), we get a palindrome (479565974).

The spelling of 134431543 in words is "one hundred thirty-four million, four hundred thirty-one thousand, five hundred forty-three".