13293505 has 4 divisors (see below), whose sum is σ = 15952212. Its totient is φ = 10634800.

The previous prime is 13293481. The next prime is 13293509. The reversal of 13293505 is 50539231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50539231 = 97 ⋅521023.

It can be written as a sum of positive squares in 2 ways, for example, as 1896129 + 11397376 = 1377^2 + 3376^2 .

It is not a de Polignac number, because 13293505 - 2⁷ = 13293377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13293509) 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 3 ways as a sum of consecutive naturals, for example, 1329346 + ... + 1329355.

It is an arithmetic number, because the mean of its divisors is an integer number (3988053).

Almost surely, 2^13293505 is an apocalyptic number.

It is an amenable number.

13293505 is a deficient number, since it is larger than the sum of its proper divisors (2658707).

13293505 is an equidigital number, since it uses as much as digits as its factorization.

13293505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658706.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 13293505 is about 3646.0259187230. The cubic root of 13293505 is about 236.8898762596.

The spelling of 13293505 in words is "thirteen million, two hundred ninety-three thousand, five hundred five".