13311497 has 4 divisors (see below), whose sum is σ = 13443396. Its totient is φ = 13179600.

The previous prime is 13311491. The next prime is 13311509. The reversal of 13311497 is 79411331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79411331 = 53 ⋅1498327.

It can be written as a sum of positive squares in 2 ways, for example, as 12503296 + 808201 = 3536^2 + 899^2 .

It is a cyclic number.

It is not a de Polignac number, because 13311497 - 2⁶ = 13311433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13311491) 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 3 ways as a sum of consecutive naturals, for example, 65798 + ... + 65999.

It is an arithmetic number, because the mean of its divisors is an integer number (3360849).

Almost surely, 2^13311497 is an apocalyptic number.

It is an amenable number.

13311497 is a deficient number, since it is larger than the sum of its proper divisors (131899).

13311497 is a wasteful number, since it uses less digits than its factorization.

13311497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131898.

The product of its digits is 2268, while the sum is 29.

The square root of 13311497 is about 3648.4924283874. The cubic root of 13311497 is about 236.9967003879.

The spelling of 13311497 in words is "thirteen million, three hundred eleven thousand, four hundred ninety-seven".