54018121 has 4 divisors (see below), whose sum is σ = 56861200. Its totient is φ = 51175044.

The previous prime is 54018109. The next prime is 54018127. The reversal of 54018121 is 12181045.

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: 12181045 = 5 ⋅2436209.

It is a cyclic number.

It is not a de Polignac number, because 54018121 - 2⁹ = 54017609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54018092 and 54018101.

It is not an unprimeable number, because it can be changed into a prime (54018127) 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, 1421511 + ... + 1421548.

It is an arithmetic number, because the mean of its divisors is an integer number (14215300).

Almost surely, 2^54018121 is an apocalyptic number.

It is an amenable number.

54018121 is a deficient number, since it is larger than the sum of its proper divisors (2843079).

54018121 is a wasteful number, since it uses less digits than its factorization.

54018121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843078.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 54018121 is about 7349.7021028066. The cubic root of 54018121 is about 378.0185899240.

Adding to 54018121 its reverse (12181045), we get a palindrome (66199166).

The spelling of 54018121 in words is "fifty-four million, eighteen thousand, one hundred twenty-one".