54209121 has 8 divisors (see below), whose sum is σ = 72358944. Its totient is φ = 36099360.

The previous prime is 54209101. The next prime is 54209153. The reversal of 54209121 is 12190245.

54209121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54209121 - 2¹⁰ = 54208097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54209091 and 54209100.

It is not an unprimeable number, because it can be changed into a prime (54209101) 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 7 ways as a sum of consecutive naturals, for example, 6700 + ... + 12381.

It is an arithmetic number, because the mean of its divisors is an integer number (9044868).

Almost surely, 2^54209121 is an apocalyptic number.

It is an amenable number.

54209121 is a deficient number, since it is larger than the sum of its proper divisors (18149823).

54209121 is a wasteful number, since it uses less digits than its factorization.

54209121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20031.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 54209121 is about 7362.6843610194. The cubic root of 54209121 is about 378.4636049063.

Adding to 54209121 its reverse (12190245), we get a palindrome (66399366).

It can be divided in two parts, 5420 and 9121, that added together give a palindrome (14541).

The spelling of 54209121 in words is "fifty-four million, two hundred nine thousand, one hundred twenty-one".