3312561 has 16 divisors (see below), whose sum is σ = 5076864. Its totient is φ = 1881984.

The previous prime is 3312539. The next prime is 3312563. The reversal of 3312561 is 1652133.

3312561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3312561 - 2¹³ = 3304369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3312563) 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 15 ways as a sum of consecutive naturals, for example, 4555 + ... + 5231.

It is an arithmetic number, because the mean of its divisors is an integer number (317304).

Almost surely, 2^3312561 is an apocalyptic number.

It is an amenable number.

3312561 is a deficient number, since it is larger than the sum of its proper divisors (1764303).

3312561 is a wasteful number, since it uses less digits than its factorization.

3312561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920.

The product of its digits is 540, while the sum is 21.

The square root of 3312561 is about 1820.0442302318. The cubic root of 3312561 is about 149.0692139736.

Adding to 3312561 its reverse (1652133), we get a palindrome (4964694).

The spelling of 3312561 in words is "three million, three hundred twelve thousand, five hundred sixty-one".