561162308 has 36 divisors (see below), whose sum is σ = 1144906560. Its totient is φ = 239963472.

The previous prime is 561162271. The next prime is 561162317. The reversal of 561162308 is 803261165.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92513 + ... + 98391.

It is an arithmetic number, because the mean of its divisors is an integer number (31802960).

Almost surely, 2^561162308 is an apocalyptic number.

It is an amenable number.

561162308 is an abundant number, since it is smaller than the sum of its proper divisors (583744252).

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

561162308 is a wasteful number, since it uses less digits than its factorization.

561162308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6384 (or 6375 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 561162308 is about 23688.8646414302. The cubic root of 561162308 is about 824.8269281270.

The spelling of 561162308 in words is "five hundred sixty-one million, one hundred sixty-two thousand, three hundred eight".