6001581 has 8 divisors (see below), whose sum is σ = 8031520. Its totient is φ = 3986352.

The previous prime is 6001577. The next prime is 6001601. The reversal of 6001581 is 1851006.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6001581 - 2² = 6001577 is a prime.

It is a super-2 number, since 2×6001581² = 72037948999122, which contains 22 as substring.

It is a Duffinian number.

6001581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6001531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2686 + ... + 4383.

It is an arithmetic number, because the mean of its divisors is an integer number (1003940).

Almost surely, 2^6001581 is an apocalyptic number.

It is an amenable number.

6001581 is a deficient number, since it is larger than the sum of its proper divisors (2029939).

6001581 is a wasteful number, since it uses less digits than its factorization.

6001581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355.

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

The square root of 6001581 is about 2449.8124418004. The cubic root of 6001581 is about 181.7280182574.

Adding to 6001581 its reverse (1851006), we get a palindrome (7852587).

The spelling of 6001581 in words is "six million, one thousand, five hundred eighty-one".