3163581 has 48 divisors (see below), whose sum is σ = 5391360. Its totient is φ = 1774080.

The previous prime is 3163579. The next prime is 3163583. The reversal of 3163581 is 1853613.

3163581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3163579) and next prime (3163583).

It is not a de Polignac number, because 3163581 - 2¹ = 3163579 is a prime.

It is a super-2 number, since 2×3163581² = 20016489487122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3163583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102036 + ... + 102066.

It is an arithmetic number, because the mean of its divisors is an integer number (112320).

Almost surely, 2^3163581 is an apocalyptic number.

3163581 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3163581 is a deficient number, since it is larger than the sum of its proper divisors (2227779).

3163581 is a wasteful number, since it uses less digits than its factorization.

3163581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 103 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 3163581 is about 1778.6458332113. The cubic root of 3163581 is about 146.8000892178.

The spelling of 3163581 in words is "three million, one hundred sixty-three thousand, five hundred eighty-one".