561183 has 8 divisors (see below), whose sum is σ = 855168. Its totient is φ = 320664.

The previous prime is 561181. The next prime is 561191. The reversal of 561183 is 381165.

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

It is not a de Polignac number, because 561183 - 2¹ = 561181 is a prime.

561183 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561181) 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, 13341 + ... + 13382.

It is an arithmetic number, because the mean of its divisors is an integer number (106896).

2⁵⁶¹¹⁸³ is an apocalyptic number.

561183 is a deficient number, since it is larger than the sum of its proper divisors (293985).

561183 is a wasteful number, since it uses less digits than its factorization.

561183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26733.

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

The square root of 561183 is about 749.1214854748. The cubic root of 561183 is about 82.4837066079.

The spelling of 561183 in words is "five hundred sixty-one thousand, one hundred eighty-three".