13491297 has 12 divisors (see below), whose sum is σ = 19637904. Its totient is φ = 8924760.

The previous prime is 13491281. The next prime is 13491301. The reversal of 13491297 is 79219431.

13491297 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13491297 - 2⁴ = 13491281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13491227) 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 11 ways as a sum of consecutive naturals, for example, 4543 + ... + 6900.

It is an arithmetic number, because the mean of its divisors is an integer number (1636492).

Almost surely, 2^13491297 is an apocalyptic number.

It is an amenable number.

13491297 is a deficient number, since it is larger than the sum of its proper divisors (6146607).

13491297 is a wasteful number, since it uses less digits than its factorization.

13491297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11580 (or 11577 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 13491297 is about 3673.0500949483. The cubic root of 13491297 is about 238.0589795688.

The spelling of 13491297 in words is "thirteen million, four hundred ninety-one thousand, two hundred ninety-seven".