561047 has 2 divisors, whose sum is σ = 561048. Its totient is φ = 561046.

The previous prime is 561019. The next prime is 561053. The reversal of 561047 is 740165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 561047 - 2¹⁰ = 560023 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280523 + 280524.

It is an arithmetic number, because the mean of its divisors is an integer number (280524).

2⁵⁶¹⁰⁴⁷ is an apocalyptic number.

561047 is a deficient number, since it is larger than the sum of its proper divisors (1).

561047 is an equidigital number, since it uses as much as digits as its factorization.

561047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 561047 is about 749.0307069807. The cubic root of 561047 is about 82.4770428931.

The spelling of 561047 in words is "five hundred sixty-one thousand, forty-seven".