3213412645 has 16 divisors (see below), whose sum is σ = 3916487232. Its totient is φ = 2530690560.

The previous prime is 3213412621. The next prime is 3213412649. The reversal of 3213412645 is 5462143123.

3213412645 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 3213412645 - 2²³ = 3205024037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213412649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103765 + ... + 131125.

It is an arithmetic number, because the mean of its divisors is an integer number (244780452).

Almost surely, 2^3213412645 is an apocalyptic number.

It is an amenable number.

3213412645 is a deficient number, since it is larger than the sum of its proper divisors (703074587).

3213412645 is a wasteful number, since it uses less digits than its factorization.

3213412645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27732.

The product of its digits is 17280, while the sum is 31.

The square root of 3213412645 is about 56686.9706811010. The cubic root of 3213412645 is about 1475.6685882112.

Adding to 3213412645 its reverse (5462143123), we get a palindrome (8675555768).

The spelling of 3213412645 in words is "three billion, two hundred thirteen million, four hundred twelve thousand, six hundred forty-five".