129734512 has 20 divisors (see below), whose sum is σ = 255114376. Its totient is φ = 63898560.

The previous prime is 129734503. The next prime is 129734557. The reversal of 129734512 is 215437921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 59439 + ... + 61582.

Almost surely, 2^129734512 is an apocalyptic number.

It is an amenable number.

129734512 is a deficient number, since it is larger than the sum of its proper divisors (125379864).

129734512 is a wasteful number, since it uses less digits than its factorization.

129734512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121096 (or 121090 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 129734512 is about 11390.1058818608. The cubic root of 129734512 is about 506.2346186050.

The spelling of 129734512 in words is "one hundred twenty-nine million, seven hundred thirty-four thousand, five hundred twelve".