5644161 has 12 divisors (see below), whose sum is σ = 8454992. Its totient is φ = 3762612.

The previous prime is 5644157. The next prime is 5644169. The reversal of 5644161 is 1614465.

5644161 is a `hidden beast` number, since 5 + 644 + 16 + 1 = 666.

It is not a de Polignac number, because 5644161 - 2² = 5644157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5644169) 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 11 ways as a sum of consecutive naturals, for example, 11371 + ... + 11856.

Almost surely, 2^5644161 is an apocalyptic number.

It is an amenable number.

5644161 is a deficient number, since it is larger than the sum of its proper divisors (2810831).

5644161 is an equidigital number, since it uses as much as digits as its factorization.

5644161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23242 (or 23230 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 5644161 is about 2375.7443044234. The cubic root of 5644161 is about 178.0463730543.

The spelling of 5644161 in words is "five million, six hundred forty-four thousand, one hundred sixty-one".