13340453 has 4 divisors (see below), whose sum is σ = 15246240. Its totient is φ = 11434668.

The previous prime is 13340443. The next prime is 13340473. The reversal of 13340453 is 35404331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35404331 = 29 ⋅1220839.

It is not a de Polignac number, because 13340453 - 2¹⁰ = 13339429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13340423) 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, 952883 + ... + 952896.

It is an arithmetic number, because the mean of its divisors is an integer number (3811560).

Almost surely, 2^13340453 is an apocalyptic number.

It is an amenable number.

13340453 is a deficient number, since it is larger than the sum of its proper divisors (1905787).

13340453 is an equidigital number, since it uses as much as digits as its factorization.

13340453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905786.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 13340453 is about 3652.4584871015. The cubic root of 13340453 is about 237.1684192803.

Adding to 13340453 its reverse (35404331), we get a palindrome (48744784).

The spelling of 13340453 in words is "thirteen million, three hundred forty thousand, four hundred fifty-three".