581160982 has 4 divisors (see below), whose sum is σ = 871741476. Its totient is φ = 290580490.

The previous prime is 581160947. The next prime is 581161013. The reversal of 581160982 is 289061185.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145290244 + ... + 145290247.

It is an arithmetic number, because the mean of its divisors is an integer number (217935369).

Almost surely, 2^581160982 is an apocalyptic number.

581160982 is a deficient number, since it is larger than the sum of its proper divisors (290580494).

581160982 is a wasteful number, since it uses less digits than its factorization.

581160982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290580493.

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 581160982 is about 24107.2806844737. The cubic root of 581160982 is about 834.5111613965.

The spelling of 581160982 in words is "five hundred eighty-one million, one hundred sixty thousand, nine hundred eighty-two".