13107729 has 8 divisors (see below), whose sum is σ = 17610912. Its totient is φ = 8671520.

The previous prime is 13107727. The next prime is 13107751. The reversal of 13107729 is 92770131.

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 13107729 - 2¹ = 13107727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13107696 and 13107705.

It is not an unprimeable number, because it can be changed into a prime (13107727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16284 + ... + 17069.

It is an arithmetic number, because the mean of its divisors is an integer number (2201364).

Almost surely, 2^13107729 is an apocalyptic number.

It is an amenable number.

13107729 is a deficient number, since it is larger than the sum of its proper divisors (4503183).

13107729 is a wasteful number, since it uses less digits than its factorization.

13107729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33487.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 13107729 is about 3620.4597774316. The cubic root of 13107729 is about 235.7811878310.

The spelling of 13107729 in words is "thirteen million, one hundred seven thousand, seven hundred twenty-nine".