129334342 has 4 divisors (see below), whose sum is σ = 194001516. Its totient is φ = 64667170.

The previous prime is 129334327. The next prime is 129334379. The reversal of 129334342 is 243433921.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32333584 + ... + 32333587.

It is an arithmetic number, because the mean of its divisors is an integer number (48500379).

Almost surely, 2^129334342 is an apocalyptic number.

129334342 is a deficient number, since it is larger than the sum of its proper divisors (64667174).

129334342 is an equidigital number, since it uses as much as digits as its factorization.

129334342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64667173.

The product of its digits is 15552, while the sum is 31.

The square root of 129334342 is about 11372.5257528836. The cubic root of 129334342 is about 505.7135838913.

The spelling of 129334342 in words is "one hundred twenty-nine million, three hundred thirty-four thousand, three hundred forty-two".