561110141 has 2 divisors, whose sum is σ = 561110142. Its totient is φ = 561110140.

The previous prime is 561110087. The next prime is 561110149. The reversal of 561110141 is 141011165.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 406828900 + 154281241 = 20170^2 + 12421^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561110141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561110149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280555070 + 280555071.

It is an arithmetic number, because the mean of its divisors is an integer number (280555071).

Almost surely, 2^561110141 is an apocalyptic number.

It is an amenable number.

561110141 is a deficient number, since it is larger than the sum of its proper divisors (1).

561110141 is an equidigital number, since it uses as much as digits as its factorization.

561110141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 561110141 is about 23687.7635288771. The cubic root of 561110141 is about 824.8013680355.

The spelling of 561110141 in words is "five hundred sixty-one million, one hundred ten thousand, one hundred forty-one".