129813143 has 2 divisors, whose sum is σ = 129813144. Its totient is φ = 129813142.

The previous prime is 129813133. The next prime is 129813161. The reversal of 129813143 is 341318921.

It is a weak prime.

It is an emirp because it is prime and its reverse (341318921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129813143 - 2⁸ = 129812887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129813133) 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, 64906571 + 64906572.

It is an arithmetic number, because the mean of its divisors is an integer number (64906572).

Almost surely, 2^129813143 is an apocalyptic number.

129813143 is a deficient number, since it is larger than the sum of its proper divisors (1).

129813143 is an equidigital number, since it uses as much as digits as its factorization.

129813143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 32.

The square root of 129813143 is about 11393.5570828429. The cubic root of 129813143 is about 506.3368728019.

It can be divided in two parts, 1298 and 13143, that added together give a palindrome (14441).

The spelling of 129813143 in words is "one hundred twenty-nine million, eight hundred thirteen thousand, one hundred forty-three".