5478121 has 8 divisors (see below), whose sum is σ = 6066144. Its totient is φ = 4905120.

The previous prime is 5478113. The next prime is 5478167. The reversal of 5478121 is 1218745.

5478121 is digitally balanced in base 3, 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 5478121 - 2³ = 5478113 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5478121.

It is not an unprimeable number, because it can be changed into a prime (5478181) 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, 2980 + ... + 4453.

It is an arithmetic number, because the mean of its divisors is an integer number (758268).

Almost surely, 2^5478121 is an apocalyptic number.

It is an amenable number.

5478121 is a deficient number, since it is larger than the sum of its proper divisors (588023).

5478121 is a wasteful number, since it uses less digits than its factorization.

5478121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7511.

The product of its digits is 2240, while the sum is 28.

The square root of 5478121 is about 2340.5386132256. The cubic root of 5478121 is about 176.2830436176.

It can be divided in two parts, 547 and 8121, that added together give a palindrome (8668).

The spelling of 5478121 in words is "five million, four hundred seventy-eight thousand, one hundred twenty-one".