13680453 has 4 divisors (see below), whose sum is σ = 18240608. Its totient is φ = 9120300.

The previous prime is 13680439. The next prime is 13680479. The reversal of 13680453 is 35408631.

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: 35408631 = 3 ⋅11802877.

It is not a de Polignac number, because 13680453 - 2¹³ = 13672261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13680453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13680353) 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, 2280073 + ... + 2280078.

It is an arithmetic number, because the mean of its divisors is an integer number (4560152).

Almost surely, 2^13680453 is an apocalyptic number.

It is an amenable number.

13680453 is a deficient number, since it is larger than the sum of its proper divisors (4560155).

13680453 is an equidigital number, since it uses as much as digits as its factorization.

13680453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4560154.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 13680453 is about 3698.7096398609. The cubic root of 13680453 is about 239.1663961493.

The spelling of 13680453 in words is "thirteen million, six hundred eighty thousand, four hundred fifty-three".