13497845 has 4 divisors (see below), whose sum is σ = 16197420. Its totient is φ = 10798272.

The previous prime is 13497821. The next prime is 13497851. The reversal of 13497845 is 54879431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54879431 = 179 ⋅306589.

It can be written as a sum of positive squares in 2 ways, for example, as 1540081 + 11957764 = 1241^2 + 3458^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13497845 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1349780 + ... + 1349789.

It is an arithmetic number, because the mean of its divisors is an integer number (4049355).

Almost surely, 2^13497845 is an apocalyptic number.

It is an amenable number.

13497845 is a deficient number, since it is larger than the sum of its proper divisors (2699575).

13497845 is an equidigital number, since it uses as much as digits as its factorization.

13497845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699574.

The product of its digits is 120960, while the sum is 41.

The square root of 13497845 is about 3673.9413441153. The cubic root of 13497845 is about 238.0974873089.

It can be divided in two parts, 134 and 97845, that added together give a palindrome (97979).

The spelling of 13497845 in words is "thirteen million, four hundred ninety-seven thousand, eight hundred forty-five".