3213645045 has 64 divisors (see below), whose sum is σ = 5640171264. Its totient is φ = 1552988160.

The previous prime is 3213645041. The next prime is 3213645049. The reversal of 3213645045 is 5405463123.

It is an interprime number because it is at equal distance from previous prime (3213645041) and next prime (3213645049).

It is not a de Polignac number, because 3213645045 - 2² = 3213645041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3213644997 and 3213645015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213645041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2928937 + ... + 2930033.

It is an arithmetic number, because the mean of its divisors is an integer number (88127676).

Almost surely, 2^3213645045 is an apocalyptic number.

It is an amenable number.

3213645045 is a deficient number, since it is larger than the sum of its proper divisors (2426526219).

3213645045 is a wasteful number, since it uses less digits than its factorization.

3213645045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 3213645045 is about 56689.0204978001. The cubic root of 3213645045 is about 1475.7041617225.

The spelling of 3213645045 in words is "three billion, two hundred thirteen million, six hundred forty-five thousand, forty-five".