3213140345 has 8 divisors (see below), whose sum is σ = 3856393800. Its totient is φ = 2570095360.

The previous prime is 3213140339. The next prime is 3213140353. The reversal of 3213140345 is 5430413123.

It can be written as a sum of positive squares in 4 ways, for example, as 394379881 + 2818760464 = 19859^2 + 53092^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3213140345 - 2²⁰ = 3212091769 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15920 + ... + 81729.

It is an arithmetic number, because the mean of its divisors is an integer number (482049225).

Almost surely, 2^3213140345 is an apocalyptic number.

It is an amenable number.

3213140345 is a deficient number, since it is larger than the sum of its proper divisors (643253455).

3213140345 is an equidigital number, since it uses as much as digits as its factorization.

3213140345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104235.

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

The square root of 3213140345 is about 56684.5688437338. The cubic root of 3213140345 is about 1475.6269050173.

Adding to 3213140345 its reverse (5430413123), we get a palindrome (8643553468).

The spelling of 3213140345 in words is "three billion, two hundred thirteen million, one hundred forty thousand, three hundred forty-five".