129837572 has 12 divisors (see below), whose sum is σ = 227304000. Its totient is φ = 64893576.

The previous prime is 129837569. The next prime is 129837593. The reversal of 129837572 is 275738921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9929 + ... + 18927.

It is an arithmetic number, because the mean of its divisors is an integer number (18942000).

Almost surely, 2^129837572 is an apocalyptic number.

It is an amenable number.

129837572 is a deficient number, since it is larger than the sum of its proper divisors (97466428).

129837572 is a wasteful number, since it uses less digits than its factorization.

129837572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12610 (or 12608 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The square root of 129837572 is about 11394.6290856701. The cubic root of 129837572 is about 506.3686326257.

The spelling of 129837572 in words is "one hundred twenty-nine million, eight hundred thirty-seven thousand, five hundred seventy-two".