13443453 has 6 divisors (see below), whose sum is σ = 19418334. Its totient is φ = 8962296.

The previous prime is 13443407. The next prime is 13443467. The reversal of 13443453 is 35434431.

It can be written as a sum of positive squares in only one way, i.e., 10478169 + 2965284 = 3237^2 + 1722^2 .

It is not a de Polignac number, because 13443453 - 2⁶ = 13443389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13443253) 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 5 ways as a sum of consecutive naturals, for example, 746850 + ... + 746867.

It is an arithmetic number, because the mean of its divisors is an integer number (3236389).

Almost surely, 2^13443453 is an apocalyptic number.

It is an amenable number.

13443453 is a deficient number, since it is larger than the sum of its proper divisors (5974881).

13443453 is a wasteful number, since it uses less digits than its factorization.

13443453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493723 (or 1493720 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 13443453 is about 3666.5314672044. The cubic root of 13443453 is about 237.7772378378. Note that the first 3 decimals are identical.

Adding to 13443453 its reverse (35434431), we get a palindrome (48877884).

The spelling of 13443453 in words is "thirteen million, four hundred forty-three thousand, four hundred fifty-three".