129741336 has 48 divisors (see below), whose sum is σ = 352397760. Its totient is φ = 43122240.

The previous prime is 129741307. The next prime is 129741341. The reversal of 129741336 is 633147921.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 129741336.

It is a congruent number.

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, 24441 + ... + 29271.

It is an arithmetic number, because the mean of its divisors is an integer number (7341620).

Almost surely, 2^129741336 is an apocalyptic number.

It is an amenable number.

129741336 is an abundant number, since it is smaller than the sum of its proper divisors (222656424).

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

129741336 is a wasteful number, since it uses less digits than its factorization.

129741336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5216 (or 5209 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 129741336 is about 11390.4054361555. The cubic root of 129741336 is about 506.2434943837.

The spelling of 129741336 in words is "one hundred twenty-nine million, seven hundred forty-one thousand, three hundred thirty-six".