561029 has 4 divisors (see below), whose sum is σ = 641184. Its totient is φ = 480876.

The previous prime is 561019. The next prime is 561047. The reversal of 561029 is 920165.

561029 = T₁₄₂ + T₁₄₃ + ... + T₁₈₃.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 560995 and 561013.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 561029.

It is not an unprimeable number, because it can be changed into a prime (561019) 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, 40067 + ... + 40080.

It is an arithmetic number, because the mean of its divisors is an integer number (160296).

2⁵⁶¹⁰²⁹ is an apocalyptic number.

It is an amenable number.

561029 is a deficient number, since it is larger than the sum of its proper divisors (80155).

561029 is an equidigital number, since it uses as much as digits as its factorization.

561029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80154.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 561029 is about 749.0186913556. The cubic root of 561029 is about 82.4761608501.

The spelling of 561029 in words is "five hundred sixty-one thousand, twenty-nine".