13069505 has 4 divisors (see below), whose sum is σ = 15683412. Its totient is φ = 10455600.

The previous prime is 13069493. The next prime is 13069513. The reversal of 13069505 is 50596031.

13069505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50596031 = 19 ⋅2662949.

It can be written as a sum of positive squares in 2 ways, for example, as 2982529 + 10086976 = 1727^2 + 3176^2 .

It is not a de Polignac number, because 13069505 - 2⁸ = 13069249 is a prime.

It is a super-3 number, since 3×13069505³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1306946 + ... + 1306955.

It is an arithmetic number, because the mean of its divisors is an integer number (3920853).

Almost surely, 2^13069505 is an apocalyptic number.

It is an amenable number.

13069505 is a deficient number, since it is larger than the sum of its proper divisors (2613907).

13069505 is an equidigital number, since it uses as much as digits as its factorization.

13069505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613906.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 13069505 is about 3615.1770357757. The cubic root of 13069505 is about 235.5517742049.

The spelling of 13069505 in words is "thirteen million, sixty-nine thousand, five hundred five".