561088141 has 2 divisors, whose sum is σ = 561088142. Its totient is φ = 561088140.

The previous prime is 561088139. The next prime is 561088193. The reversal of 561088141 is 141880165.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 423495241 + 137592900 = 20579^2 + 11730^2 .

It is a cyclic number.

It is not a de Polignac number, because 561088141 - 2¹ = 561088139 is a prime.

Together with 561088139, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 561088097 and 561088106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561088441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280544070 + 280544071.

It is an arithmetic number, because the mean of its divisors is an integer number (280544071).

Almost surely, 2^561088141 is an apocalyptic number.

It is an amenable number.

561088141 is a deficient number, since it is larger than the sum of its proper divisors (1).

561088141 is an equidigital number, since it uses as much as digits as its factorization.

561088141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 561088141 is about 23687.2991495443. The cubic root of 561088141 is about 824.7905882938.

The spelling of 561088141 in words is "five hundred sixty-one million, eighty-eight thousand, one hundred forty-one".