561741 has 8 divisors (see below), whose sum is σ = 767424. Its totient is φ = 365280.

The previous prime is 561733. The next prime is 561761. The reversal of 561741 is 147165.

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

It is not a de Polignac number, because 561741 - 2³ = 561733 is a prime.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561761) 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, 2161 + ... + 2406.

It is an arithmetic number, because the mean of its divisors is an integer number (95928).

2⁵⁶¹⁷⁴¹ is an apocalyptic number.

It is an amenable number.

561741 is a deficient number, since it is larger than the sum of its proper divisors (205683).

561741 is a wasteful number, since it uses less digits than its factorization.

561741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4611.

The product of its digits is 840, while the sum is 24.

The square root of 561741 is about 749.4938291941. The cubic root of 561741 is about 82.5110361728.

The spelling of 561741 in words is "five hundred sixty-one thousand, seven hundred forty-one".