129437234 has 16 divisors (see below), whose sum is σ = 206966400. Its totient is φ = 60534864.

The previous prime is 129437207. The next prime is 129437293. The reversal of 129437234 is 432734921.

It is a junction number, because it is equal to n+sod(n) for n = 129437194 and 129437203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18557 + ... + 24560.

It is an arithmetic number, because the mean of its divisors is an integer number (12935400).

Almost surely, 2^129437234 is an apocalyptic number.

129437234 is a deficient number, since it is larger than the sum of its proper divisors (77529166).

129437234 is a wasteful number, since it uses less digits than its factorization.

129437234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43217.

The product of its digits is 36288, while the sum is 35.

The square root of 129437234 is about 11377.0485627864. The cubic root of 129437234 is about 505.8476552417.

The spelling of 129437234 in words is "one hundred twenty-nine million, four hundred thirty-seven thousand, two hundred thirty-four".