13321554 has 32 divisors (see below), whose sum is σ = 28563840. Its totient is φ = 4131072.

The previous prime is 13321513. The next prime is 13321559. The reversal of 13321554 is 45512331.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13321559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3802 + ... + 6410.

It is an arithmetic number, because the mean of its divisors is an integer number (892620).

Almost surely, 2^13321554 is an apocalyptic number.

13321554 is an abundant number, since it is smaller than the sum of its proper divisors (15242286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13321554 is a wasteful number, since it uses less digits than its factorization.

13321554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674.

The product of its digits is 1800, while the sum is 24.

The square root of 13321554 is about 3649.8704086584. The cubic root of 13321554 is about 237.0563700058.

Adding to 13321554 its reverse (45512331), we get a palindrome (58833885).

It can be divided in two parts, 133 and 21554, that multiplied together give a palindrome (2866682).

The spelling of 13321554 in words is "thirteen million, three hundred twenty-one thousand, five hundred fifty-four".