3245221313 has 4 divisors (see below), whose sum is σ = 3293657520. Its totient is φ = 3196785108.

The previous prime is 3245221303. The next prime is 3245221319. The reversal of 3245221313 is 3131225423.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3131225423 = 107 ⋅29263789.

It is a cyclic number.

It is not a de Polignac number, because 3245221313 - 2¹⁰ = 3245220289 is a prime.

It is a super-3 number, since 3×3245221313³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3245221319) 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, 24218003 + ... + 24218136.

It is an arithmetic number, because the mean of its divisors is an integer number (823414380).

Almost surely, 2^3245221313 is an apocalyptic number.

It is an amenable number.

3245221313 is a deficient number, since it is larger than the sum of its proper divisors (48436207).

3245221313 is an equidigital number, since it uses as much as digits as its factorization.

3245221313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48436206.

The product of its digits is 4320, while the sum is 26.

The square root of 3245221313 is about 56966.8439796343. The cubic root of 3245221313 is about 1480.5216862191.

Adding to 3245221313 its reverse (3131225423), we get a palindrome (6376446736).

The spelling of 3245221313 in words is "three billion, two hundred forty-five million, two hundred twenty-one thousand, three hundred thirteen".