581120118 has 12 divisors (see below), whose sum is σ = 1259093628. Its totient is φ = 193706700.

The previous prime is 581120107. The next prime is 581120153. The reversal of 581120118 is 811021185.

It is a junction number, because it is equal to n+sod(n) for n = 581120091 and 581120100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16142208 + ... + 16142243.

It is an arithmetic number, because the mean of its divisors is an integer number (104924469).

Almost surely, 2^581120118 is an apocalyptic number.

581120118 is an abundant number, since it is smaller than the sum of its proper divisors (677973510).

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

581120118 is a wasteful number, since it uses less digits than its factorization.

581120118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32284459 (or 32284456 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 27.

The square root of 581120118 is about 24106.4331247906. The cubic root of 581120118 is about 834.4916015474.

The spelling of 581120118 in words is "five hundred eighty-one million, one hundred twenty thousand, one hundred eighteen".