13554121 has 4 divisors (see below), whose sum is σ = 15490432. Its totient is φ = 11617812.

The previous prime is 13554097. The next prime is 13554127. The reversal of 13554121 is 12145531.

It is a happy number.

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: 12145531 = 17 ⋅714443.

It is a cyclic number.

It is not a de Polignac number, because 13554121 - 2¹⁹ = 13029833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13554092 and 13554101.

It is not an unprimeable number, because it can be changed into a prime (13554127) 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, 968145 + ... + 968158.

It is an arithmetic number, because the mean of its divisors is an integer number (3872608).

Almost surely, 2^13554121 is an apocalyptic number.

It is an amenable number.

13554121 is a deficient number, since it is larger than the sum of its proper divisors (1936311).

13554121 is an equidigital number, since it uses as much as digits as its factorization.

13554121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936310.

The product of its digits is 600, while the sum is 22.

The square root of 13554121 is about 3681.5921827383. The cubic root of 13554121 is about 238.4279251348.

Adding to 13554121 its reverse (12145531), we get a palindrome (25699652).

It can be divided in two parts, 1355 and 4121, that added together give a square (5476 = 74²).

The spelling of 13554121 in words is "thirteen million, five hundred fifty-four thousand, one hundred twenty-one".