54144121 has 2 divisors, whose sum is σ = 54144122. Its totient is φ = 54144120.

The previous prime is 54144109. The next prime is 54144157. The reversal of 54144121 is 12144145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38303721 + 15840400 = 6189^2 + 3980^2 .

It is a cyclic number.

It is not a de Polignac number, because 54144121 - 2⁵ = 54144089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54144092 and 54144101.

It is not a weakly prime, because it can be changed into another prime (54144161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27072060 + 27072061.

It is an arithmetic number, because the mean of its divisors is an integer number (27072061).

Almost surely, 2^54144121 is an apocalyptic number.

It is an amenable number.

54144121 is a deficient number, since it is larger than the sum of its proper divisors (1).

54144121 is an equidigital number, since it uses as much as digits as its factorization.

54144121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640, while the sum is 22.

The square root of 54144121 is about 7358.2688860900. The cubic root of 54144121 is about 378.3122775235.

Adding to 54144121 its reverse (12144145), we get a palindrome (66288266).

The spelling of 54144121 in words is "fifty-four million, one hundred forty-four thousand, one hundred twenty-one".