13422543 has 4 divisors (see below), whose sum is σ = 17896728. Its totient is φ = 8948360.

The previous prime is 13422533. The next prime is 13422581. The reversal of 13422543 is 34522431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34522431 = 3 ⋅11507477.

It is a cyclic number.

It is not a de Polignac number, because 13422543 - 2¹⁷ = 13291471 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13422533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2237088 + ... + 2237093.

It is an arithmetic number, because the mean of its divisors is an integer number (4474182).

Almost surely, 2^13422543 is an apocalyptic number.

13422543 is a deficient number, since it is larger than the sum of its proper divisors (4474185).

13422543 is an equidigital number, since it uses as much as digits as its factorization.

13422543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474184.

The product of its digits is 2880, while the sum is 24.

The square root of 13422543 is about 3663.6788887674. The cubic root of 13422543 is about 237.6538939802.

Adding to 13422543 its reverse (34522431), we get a palindrome (47944974).

The spelling of 13422543 in words is "thirteen million, four hundred twenty-two thousand, five hundred forty-three".