129443000 has 32 divisors (see below), whose sum is σ = 302898960. Its totient is φ = 51776800.

The previous prime is 129442967. The next prime is 129443003. The reversal of 129443000 is 344921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129443003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63722 + ... + 65721.

Almost surely, 2^129443000 is an apocalyptic number.

129443000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129443000 is an abundant number, since it is smaller than the sum of its proper divisors (173455960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129443000 is a wasteful number, since it uses less digits than its factorization.

129443000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129464 (or 129450 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 129443000 is about 11377.3019648773. The cubic root of 129443000 is about 505.8551664093.

Adding to 129443000 its reverse (344921), we get a palindrome (129787921).

The spelling of 129443000 in words is "one hundred twenty-nine million, four hundred forty-three thousand".