3317212645 has 4 divisors (see below), whose sum is σ = 3980655180. Its totient is φ = 2653770112.

The previous prime is 3317212631. The next prime is 3317212649. The reversal of 3317212645 is 5462127133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2580741601 + 736471044 = 50801^2 + 27138^2 .

It is a cyclic number.

It is not a de Polignac number, because 3317212645 - 2¹³ = 3317204453 is a prime.

It is a super-2 number, since 2×3317212645² = 22007799464295792050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3317212645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3317212649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331721260 + ... + 331721269.

It is an arithmetic number, because the mean of its divisors is an integer number (995163795).

Almost surely, 2^3317212645 is an apocalyptic number.

It is an amenable number.

3317212645 is a deficient number, since it is larger than the sum of its proper divisors (663442535).

3317212645 is an equidigital number, since it uses as much as digits as its factorization.

3317212645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663442534.

The product of its digits is 30240, while the sum is 34.

The square root of 3317212645 is about 57595.2484585317. The cubic root of 3317212645 is about 1491.3895787073.

Adding to 3317212645 its reverse (5462127133), we get a palindrome (8779339778).

The spelling of 3317212645 in words is "three billion, three hundred seventeen million, two hundred twelve thousand, six hundred forty-five".