3231564 has 96 divisors (see below), whose sum is σ = 9547776. Its totient is φ = 829440.

The previous prime is 3231563. The next prime is 3231583. The reversal of 3231564 is 4651323.

It is a happy number.

3231564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (2160) is a multiple of the sum of its prime factors (135).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231563) 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 31 ways as a sum of consecutive naturals, for example, 44232 + ... + 44304.

It is an arithmetic number, because the mean of its divisors is an integer number (99456).

Almost surely, 2^3231564 is an apocalyptic number.

3231564 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3231564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4773888).

3231564 is an abundant number, since it is smaller than the sum of its proper divisors (6316212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3231564 is a wasteful number, since it uses less digits than its factorization.

3231564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 133 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 3231564 is about 1797.6551393412. The cubic root of 3231564 is about 147.8441871272.

Adding to 3231564 its reverse (4651323), we get a palindrome (7882887).

The spelling of 3231564 in words is "three million, two hundred thirty-one thousand, five hundred sixty-four".