129343026 has 24 divisors (see below), whose sum is σ = 260702064. Its totient is φ = 42780880.

The previous prime is 129342979. The next prime is 129343087. The reversal of 129343026 is 620343921.

It is a junction number, because it is equal to n+sod(n) for n = 129342984 and 129343002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132721 + ... + 133691.

It is an arithmetic number, because the mean of its divisors is an integer number (10862586).

Almost surely, 2^129343026 is an apocalyptic number.

129343026 is an abundant number, since it is smaller than the sum of its proper divisors (131359038).

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

129343026 is an equidigital number, since it uses as much as digits as its factorization.

129343026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274 (or 1125 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 129343026 is about 11372.9075438078. The cubic root of 129343026 is about 505.7249021496.

Adding to 129343026 its reverse (620343921), we get a palindrome (749686947).

The spelling of 129343026 in words is "one hundred twenty-nine million, three hundred forty-three thousand, twenty-six".