13129308 has 36 divisors (see below), whose sum is σ = 33343128. Its totient is φ = 4356000.

The previous prime is 13129301. The next prime is 13129313. The reversal of 13129308 is 80392131.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13129301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8310 + ... + 9762.

It is an arithmetic number, because the mean of its divisors is an integer number (926198).

Almost surely, 2^13129308 is an apocalyptic number.

13129308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13129308 is an abundant number, since it is smaller than the sum of its proper divisors (20213820).

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

13129308 is a wasteful number, since it uses less digits than its factorization.

13129308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714 (or 1709 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 13129308 is about 3623.4386982534. The cubic root of 13129308 is about 235.9105042253.

The spelling of 13129308 in words is "thirteen million, one hundred twenty-nine thousand, three hundred eight".