3651136 has 28 divisors (see below), whose sum is σ = 7338060. Its totient is φ = 1802240.

The previous prime is 3651133. The next prime is 3651157. The reversal of 3651136 is 6311563.

3651136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2073600 + 1577536 = 1440^2 + 1256^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3651136.

It is not an unprimeable number, because it can be changed into a prime (3651133) 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 3 ways as a sum of consecutive naturals, for example, 5376 + ... + 6016.

Almost surely, 2^3651136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3651136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3669030).

3651136 is an abundant number, since it is smaller than the sum of its proper divisors (3686924).

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

3651136 is an equidigital number, since it uses as much as digits as its factorization.

3651136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 732 counting only the distinct ones).

The product of its digits is 1620, while the sum is 25.

The square root of 3651136 is about 1910.7945991132. The cubic root of 3651136 is about 153.9841440919.

Adding to 3651136 its reverse (6311563), we get a palindrome (9962699).

The spelling of 3651136 in words is "three million, six hundred fifty-one thousand, one hundred thirty-six".