13029505 has 8 divisors (see below), whose sum is σ = 15790824. Its totient is φ = 10320000.

The previous prime is 13029493. The next prime is 13029521. The reversal of 13029505 is 50592031.

It can be written as a sum of positive squares in 4 ways, for example, as 4456321 + 8573184 = 2111^2 + 2928^2 .

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

It is not a de Polignac number, because 13029505 - 2⁷ = 13029377 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 13029505.

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, 12396 + ... + 13405.

It is an arithmetic number, because the mean of its divisors is an integer number (1973853).

Almost surely, 2^13029505 is an apocalyptic number.

It is an amenable number.

13029505 is a deficient number, since it is larger than the sum of its proper divisors (2761319).

13029505 is a wasteful number, since it uses less digits than its factorization.

13029505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25907.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 13029505 is about 3609.6405638235. The cubic root of 13029505 is about 235.3112218755.

The spelling of 13029505 in words is "thirteen million, twenty-nine thousand, five hundred five".