561141 has 16 divisors (see below), whose sum is σ = 950400. Its totient is φ = 320544.

The previous prime is 561109. The next prime is 561161. The reversal of 561141 is 141165.

It is not a de Polignac number, because 561141 - 2⁵ = 561109 is a prime.

It is a Curzon number.

561141 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1296 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (59400).

2⁵⁶¹¹⁴¹ is an apocalyptic number.

It is an amenable number.

561141 is a deficient number, since it is larger than the sum of its proper divisors (389259).

561141 is a wasteful number, since it uses less digits than its factorization.

561141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985 (or 2979 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 561141 is about 749.0934521140. The cubic root of 561141 is about 82.4816488109.

The spelling of 561141 in words is "five hundred sixty-one thousand, one hundred forty-one".