561314277 has 12 divisors (see below), whose sum is σ = 813197580. Its totient is φ = 373097088.

The previous prime is 561314251. The next prime is 561314291. The reversal of 561314277 is 772413165.

It is a happy number.

561314277 is a `hidden beast` number, since 5 + 613 + 14 + 27 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 411643521 + 149670756 = 20289^2 + 12234^2 .

It is not a de Polignac number, because 561314277 - 2⁶ = 561314213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561312277) 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 in 11 ways as a sum of consecutive naturals, for example, 89502 + ... + 95567.

It is an arithmetic number, because the mean of its divisors is an integer number (67766465).

Almost surely, 2^561314277 is an apocalyptic number.

It is an amenable number.

561314277 is a deficient number, since it is larger than the sum of its proper divisors (251883303).

561314277 is a wasteful number, since it uses less digits than its factorization.

561314277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185412 (or 185409 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 561314277 is about 23692.0720284233. The cubic root of 561314277 is about 824.9013788448.

The spelling of 561314277 in words is "five hundred sixty-one million, three hundred fourteen thousand, two hundred seventy-seven".