561117234 has 32 divisors (see below), whose sum is σ = 1208782080. Its totient is φ = 173072592.

The previous prime is 561117229. The next prime is 561117289. The reversal of 561117234 is 432711165.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52332 + ... + 62135.

It is an arithmetic number, because the mean of its divisors is an integer number (37774440).

Almost surely, 2^561117234 is an apocalyptic number.

561117234 is an abundant number, since it is smaller than the sum of its proper divisors (647664846).

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

561117234 is a wasteful number, since it uses less digits than its factorization.

561117234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114534.

The product of its digits is 5040, while the sum is 30.

The square root of 561117234 is about 23687.9132470549. The cubic root of 561117234 is about 824.8048434622.

Adding to 561117234 its reverse (432711165), we get a palindrome (993828399).

The spelling of 561117234 in words is "five hundred sixty-one million, one hundred seventeen thousand, two hundred thirty-four".