581674081 has 4 divisors (see below), whose sum is σ = 583259392. Its totient is φ = 580088772.

The previous prime is 581674073. The next prime is 581674087. The reversal of 581674081 is 180476185.

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, and also an emirpimes, since its reverse is a distinct semiprime: 180476185 = 5 ⋅36095237.

It is a cyclic number.

It is not a de Polignac number, because 581674081 - 2³ = 581674073 is a prime.

It is a super-2 number, since 2×581674081² = 676689473014389122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (581674087) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 792105 + ... + 792838.

It is an arithmetic number, because the mean of its divisors is an integer number (145814848).

Almost surely, 2^581674081 is an apocalyptic number.

It is an amenable number.

581674081 is a deficient number, since it is larger than the sum of its proper divisors (1585311).

581674081 is a wasteful number, since it uses less digits than its factorization.

581674081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585310.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 581674081 is about 24117.9203290831. The cubic root of 581674081 is about 834.7566819459.

It can be divided in two parts, 5816 and 74081, that added together give a palindrome (79897).

The spelling of 581674081 in words is "five hundred eighty-one million, six hundred seventy-four thousand, eighty-one".