13072705 has 8 divisors (see below), whose sum is σ = 15921792. Its totient is φ = 10301808.

The previous prime is 13072699. The next prime is 13072739. The reversal of 13072705 is 50727031.

13072705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13072705 - 2⁵ = 13072673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13072705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19177 + ... + 19846.

It is an arithmetic number, because the mean of its divisors is an integer number (1990224).

Almost surely, 2^13072705 is an apocalyptic number.

It is an amenable number.

13072705 is a deficient number, since it is larger than the sum of its proper divisors (2849087).

13072705 is an equidigital number, since it uses as much as digits as its factorization.

13072705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39095.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 13072705 is about 3615.6195872907. The cubic root of 13072705 is about 235.5709971764.

Adding to 13072705 its reverse (50727031), we get a palindrome (63799736).

The spelling of 13072705 in words is "thirteen million, seventy-two thousand, seven hundred five".