561116147 has 2 divisors, whose sum is σ = 561116148. Its totient is φ = 561116146.

The previous prime is 561116123. The next prime is 561116177. The reversal of 561116147 is 741611165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 561116147 - 2¹⁰ = 561115123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (561116177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280558073 + 280558074.

It is an arithmetic number, because the mean of its divisors is an integer number (280558074).

Almost surely, 2^561116147 is an apocalyptic number.

561116147 is a deficient number, since it is larger than the sum of its proper divisors (1).

561116147 is an equidigital number, since it uses as much as digits as its factorization.

561116147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 32.

The square root of 561116147 is about 23687.8903028531. The cubic root of 561116147 is about 824.8043108561.

The spelling of 561116147 in words is "five hundred sixty-one million, one hundred sixteen thousand, one hundred forty-seven".