561834043 has 2 divisors, whose sum is σ = 561834044. Its totient is φ = 561834042.

The previous prime is 561833989. The next prime is 561834073. The reversal of 561834043 is 340438165.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 561834043 - 2¹⁷ = 561702971 is a prime.

It is not a weakly prime, because it can be changed into another prime (561834073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280917021 + 280917022.

It is an arithmetic number, because the mean of its divisors is an integer number (280917022).

Almost surely, 2^561834043 is an apocalyptic number.

561834043 is a deficient number, since it is larger than the sum of its proper divisors (1).

561834043 is an equidigital number, since it uses as much as digits as its factorization.

561834043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 561834043 is about 23703.0386870545. The cubic root of 561834043 is about 825.1559144564.

The spelling of 561834043 in words is "five hundred sixty-one million, eight hundred thirty-four thousand, forty-three".