581874081 has 4 divisors (see below), whose sum is σ = 775832112. Its totient is φ = 387916052.

The previous prime is 581874077. The next prime is 581874103. The reversal of 581874081 is 180478185.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 581874081 - 2² = 581874077 is a prime.

It is a super-2 number, since 2×581874081² = 677154892279189122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (581874001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96979011 + ... + 96979016.

It is an arithmetic number, because the mean of its divisors is an integer number (193958028).

Almost surely, 2^581874081 is an apocalyptic number.

It is an amenable number.

581874081 is a deficient number, since it is larger than the sum of its proper divisors (193958031).

581874081 is a wasteful number, since it uses less digits than its factorization.

581874081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193958030.

The product of its (nonzero) digits is 71680, while the sum is 42.

The square root of 581874081 is about 24122.0662672168. The cubic root of 581874081 is about 834.8523438815.

The spelling of 581874081 in words is "five hundred eighty-one million, eight hundred seventy-four thousand, eighty-one".