561936345 has 16 divisors (see below), whose sum is σ = 938189952. Its totient is φ = 286668800.

The previous prime is 561936337. The next prime is 561936359. The reversal of 561936345 is 543639165.

It is not a de Polignac number, because 561936345 - 2³ = 561936337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 561936297 and 561936306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 814056 + ... + 814745.

It is an arithmetic number, because the mean of its divisors is an integer number (58636872).

Almost surely, 2^561936345 is an apocalyptic number.

It is an amenable number.

561936345 is a deficient number, since it is larger than the sum of its proper divisors (376253607).

561936345 is a wasteful number, since it uses less digits than its factorization.

561936345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628832.

The product of its digits is 291600, while the sum is 42.

The square root of 561936345 is about 23705.1965821843. The cubic root of 561936345 is about 825.2059944746.

The spelling of 561936345 in words is "five hundred sixty-one million, nine hundred thirty-six thousand, three hundred forty-five".