3312521 has 4 divisors (see below), whose sum is σ = 3357972. Its totient is φ = 3267072.

The previous prime is 3312511. The next prime is 3312527. The reversal of 3312521 is 1252133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1252133 = 29 ⋅43177.

It can be written as a sum of positive squares in 2 ways, for example, as 1860496 + 1452025 = 1364^2 + 1205^2 .

It is a cyclic number.

It is not a de Polignac number, because 3312521 - 2⁶ = 3312457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3312521.

It is not an unprimeable number, because it can be changed into a prime (3312527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22616 + ... + 22761.

It is an arithmetic number, because the mean of its divisors is an integer number (839493).

Almost surely, 2^3312521 is an apocalyptic number.

It is an amenable number.

3312521 is a deficient number, since it is larger than the sum of its proper divisors (45451).

3312521 is an equidigital number, since it uses as much as digits as its factorization.

3312521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45450.

The product of its digits is 180, while the sum is 17.

The square root of 3312521 is about 1820.0332414547. The cubic root of 3312521 is about 149.0686139552.

Adding to 3312521 its reverse (1252133), we get a palindrome (4564654).

The spelling of 3312521 in words is "three million, three hundred twelve thousand, five hundred twenty-one".