561146346 has 32 divisors (see below), whose sum is σ = 1289995200. Its totient is φ = 180598320.

The previous prime is 561146321. The next prime is 561146347. The reversal of 561146346 is 643641165.

It is a happy number.

561146346 is a `hidden beast` number, since 5 + 6 + 1 + 14 + 634 + 6 = 666.

561146346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 561146346.

It is not an unprimeable number, because it can be changed into a prime (561146347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177600 + ... + 180731.

It is an arithmetic number, because the mean of its divisors is an integer number (40312350).

Almost surely, 2^561146346 is an apocalyptic number.

561146346 is an abundant number, since it is smaller than the sum of its proper divisors (728848854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561146346 is a wasteful number, since it uses less digits than its factorization.

561146346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358371 (or 358365 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 561146346 is about 23688.5277296838. The cubic root of 561146346 is about 824.8191074472.

The spelling of 561146346 in words is "five hundred sixty-one million, one hundred forty-six thousand, three hundred forty-six".