601000581 has 4 divisors (see below), whose sum is σ = 801334112. Its totient is φ = 400667052.

The previous prime is 601000579. The next prime is 601000597. The reversal of 601000581 is 185000106.

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 not a de Polignac number, because 601000581 - 2¹ = 601000579 is a prime.

It is a super-2 number, since 2×601000581² = 722403396724675122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601000501) 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, 100166761 + ... + 100166766.

It is an arithmetic number, because the mean of its divisors is an integer number (200333528).

Almost surely, 2^601000581 is an apocalyptic number.

It is an amenable number.

601000581 is a deficient number, since it is larger than the sum of its proper divisors (200333531).

601000581 is a wasteful number, since it uses less digits than its factorization.

601000581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200333530.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 601000581 is about 24515.3131940018. The cubic root of 601000581 is about 843.9012508659.

Adding to 601000581 its reverse (185000106), we get a palindrome (786000687).

The spelling of 601000581 in words is "six hundred one million, five hundred eighty-one", and thus it is an aban number.