6531612 has 36 divisors (see below), whose sum is σ = 15881880. Its totient is φ = 2086784.

The previous prime is 6531599. The next prime is 6531617. The reversal of 6531612 is 2161356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6531617) 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 11 ways as a sum of consecutive naturals, for example, 47608 + ... + 47744.

Almost surely, 2^6531612 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 6531612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7940940).

6531612 is an abundant number, since it is smaller than the sum of its proper divisors (9350268).

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

6531612 is a wasteful number, since it uses less digits than its factorization.

6531612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 171 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 6531612 is about 2555.7018605463. The cubic root of 6531612 is about 186.9276126548.

Adding to 6531612 its reverse (2161356), we get a palindrome (8692968).

The spelling of 6531612 in words is "six million, five hundred thirty-one thousand, six hundred twelve".