561413 has 4 divisors (see below), whose sum is σ = 575148. Its totient is φ = 547680.

The previous prime is 561409. The next prime is 561419. The reversal of 561413 is 314165.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 332929 + 228484 = 577^2 + 478^2 .

It is a cyclic number.

It is not a de Polignac number, because 561413 - 2² = 561409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6806 + ... + 6887.

It is an arithmetic number, because the mean of its divisors is an integer number (143787).

2⁵⁶¹⁴¹³ is an apocalyptic number.

It is an amenable number.

561413 is a deficient number, since it is larger than the sum of its proper divisors (13735).

561413 is a wasteful number, since it uses less digits than its factorization.

561413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13734.

The product of its digits is 360, while the sum is 20.

The square root of 561413 is about 749.2749829001. The cubic root of 561413 is about 82.4949736760.

Adding to 561413 its reverse (314165), we get a palindrome (875578).

The spelling of 561413 in words is "five hundred sixty-one thousand, four hundred thirteen".