5478161 has 4 divisors (see below), whose sum is σ = 5899572. Its totient is φ = 5056752.

The previous prime is 5478113. The next prime is 5478167. The reversal of 5478161 is 1618745.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3682561 + 1795600 = 1919^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 5478161 - 2¹⁰ = 5477137 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5478167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210686 + ... + 210711.

It is an arithmetic number, because the mean of its divisors is an integer number (1474893).

Almost surely, 2^5478161 is an apocalyptic number.

It is an amenable number.

5478161 is a deficient number, since it is larger than the sum of its proper divisors (421411).

5478161 is a wasteful number, since it uses less digits than its factorization.

5478161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421410.

The product of its digits is 6720, while the sum is 32.

The square root of 5478161 is about 2340.5471582517. The cubic root of 5478161 is about 176.2834726762.

The spelling of 5478161 in words is "five million, four hundred seventy-eight thousand, one hundred sixty-one".