5645121 has 8 divisors (see below), whose sum is σ = 7600320. Its totient is φ = 3726672.

The previous prime is 5645119. The next prime is 5645137. The reversal of 5645121 is 1215465.

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

It is not a de Polignac number, because 5645121 - 2¹ = 5645119 is a prime.

It is a super-2 number, since 2×5645121² = 63734782209282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5645091 and 5645100.

It is not an unprimeable number, because it can be changed into a prime (5645161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8826 + ... + 9443.

It is an arithmetic number, because the mean of its divisors is an integer number (950040).

Almost surely, 2^5645121 is an apocalyptic number.

It is an amenable number.

5645121 is a deficient number, since it is larger than the sum of its proper divisors (1955199).

5645121 is a wasteful number, since it uses less digits than its factorization.

5645121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18375.

The product of its digits is 1200, while the sum is 24.

The square root of 5645121 is about 2375.9463377779. The cubic root of 5645121 is about 178.0564669565.

The spelling of 5645121 in words is "five million, six hundred forty-five thousand, one hundred twenty-one".