3230581 has 4 divisors (see below), whose sum is σ = 3317932. Its totient is φ = 3143232.

The previous prime is 3230573. The next prime is 3230587. The reversal of 3230581 is 1850323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1850323 = 179 ⋅10337.

It can be written as a sum of positive squares in 2 ways, for example, as 1461681 + 1768900 = 1209^2 + 1330^2 .

It is a cyclic number.

It is not a de Polignac number, because 3230581 - 2³ = 3230573 is a prime.

It is a super-2 number, since 2×3230581² = 20873307195122, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3230587) 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, 43620 + ... + 43693.

It is an arithmetic number, because the mean of its divisors is an integer number (829483).

Almost surely, 2^3230581 is an apocalyptic number.

It is an amenable number.

3230581 is a deficient number, since it is larger than the sum of its proper divisors (87351).

3230581 is an equidigital number, since it uses as much as digits as its factorization.

3230581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87350.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3230581 is about 1797.3817068169. The cubic root of 3230581 is about 147.8291948434.

The spelling of 3230581 in words is "three million, two hundred thirty thousand, five hundred eighty-one".