3166581 has 8 divisors (see below), whose sum is σ = 4605984. Its totient is φ = 1919120.

The previous prime is 3166577. The next prime is 3166613. The reversal of 3166581 is 1856613.

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

It is a cyclic number.

It is not a de Polignac number, because 3166581 - 2² = 3166577 is a prime.

It is a super-2 number, since 2×3166581² = 20054470459122, which contains 22 as substring.

3166581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3166561) 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, 47946 + ... + 48011.

It is an arithmetic number, because the mean of its divisors is an integer number (575748).

Almost surely, 2^3166581 is an apocalyptic number.

It is an amenable number.

3166581 is a deficient number, since it is larger than the sum of its proper divisors (1439403).

3166581 is a wasteful number, since it uses less digits than its factorization.

3166581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95971.

The product of its digits is 4320, while the sum is 30.

The square root of 3166581 is about 1779.4889715871. The cubic root of 3166581 is about 146.8464776967.

The spelling of 3166581 in words is "three million, one hundred sixty-six thousand, five hundred eighty-one".