129292943 has 6 divisors (see below), whose sum is σ = 140003784. Its totient is φ = 119347176.

The previous prime is 129292931. The next prime is 129292951. The reversal of 129292943 is 349292921.

It is not a de Polignac number, because 129292943 - 2⁶ = 129292879 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129292943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129292043) 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 in 5 ways as a sum of consecutive naturals, for example, 382355 + ... + 382692.

It is an arithmetic number, because the mean of its divisors is an integer number (23333964).

Almost surely, 2^129292943 is an apocalyptic number.

129292943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

129292943 is a deficient number, since it is larger than the sum of its proper divisors (10710841).

129292943 is an equidigital number, since it uses as much as digits as its factorization.

129292943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765073 (or 765060 counting only the distinct ones).

The product of its digits is 69984, while the sum is 41.

The square root of 129292943 is about 11370.7054750354. The cubic root of 129292943 is about 505.6596196965.

The spelling of 129292943 in words is "one hundred twenty-nine million, two hundred ninety-two thousand, nine hundred forty-three".