13280913 has 24 divisors (see below), whose sum is σ = 20284992. Its totient is φ = 8356128.

The previous prime is 13280881. The next prime is 13280921. The reversal of 13280913 is 31908231.

It is not a de Polignac number, because 13280913 - 2⁵ = 13280881 is a prime.

It is a super-2 number, since 2×13280913² = 352765300227138, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13280933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16795 + ... + 17567.

It is an arithmetic number, because the mean of its divisors is an integer number (845208).

Almost surely, 2^13280913 is an apocalyptic number.

It is an amenable number.

13280913 is a deficient number, since it is larger than the sum of its proper divisors (7004079).

13280913 is a wasteful number, since it uses less digits than its factorization.

13280913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 13280913 is about 3644.2986979665. The cubic root of 13280913 is about 236.8150562716.

The spelling of 13280913 in words is "thirteen million, two hundred eighty thousand, nine hundred thirteen".