561302671 has 2 divisors, whose sum is σ = 561302672. Its totient is φ = 561302670.

The previous prime is 561302659. The next prime is 561302681. The reversal of 561302671 is 176203165.

561302671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 561302671 - 2⁵ = 561302639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561302681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280651335 + 280651336.

It is an arithmetic number, because the mean of its divisors is an integer number (280651336).

Almost surely, 2^561302671 is an apocalyptic number.

561302671 is a deficient number, since it is larger than the sum of its proper divisors (1).

561302671 is an equidigital number, since it uses as much as digits as its factorization.

561302671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 561302671 is about 23691.8270929027. The cubic root of 561302671 is about 824.8956934550.

The spelling of 561302671 in words is "five hundred sixty-one million, three hundred two thousand, six hundred seventy-one".