13130729 has 8 divisors (see below), whose sum is σ = 14012640. Its totient is φ = 12267936.

The previous prime is 13130717. The next prime is 13130743. The reversal of 13130729 is 92703131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13130729 - 2⁸ = 13130473 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 13130698 and 13130707.

It is not an unprimeable number, because it can be changed into a prime (13130759) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3347 + ... + 6120.

It is an arithmetic number, because the mean of its divisors is an integer number (1751580).

Almost surely, 2^13130729 is an apocalyptic number.

13130729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13130729 is a deficient number, since it is larger than the sum of its proper divisors (881911).

13130729 is an equidigital number, since it uses as much as digits as its factorization.

13130729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9559.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 13130729 is about 3623.6347774024. The cubic root of 13130729 is about 235.9190148727.

The spelling of 13130729 in words is "thirteen million, one hundred thirty thousand, seven hundred twenty-nine".