3215226643 has 4 divisors (see below), whose sum is σ = 3404357640. Its totient is φ = 3026095648.

The previous prime is 3215226631. The next prime is 3215226661. The reversal of 3215226643 is 3466225123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3466225123 = 11801 ⋅293723.

It is a cyclic number.

It is not a de Polignac number, because 3215226643 - 2¹⁷ = 3215095571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3215226599 and 3215226608.

It is not an unprimeable number, because it can be changed into a prime (3215226943) 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 3 ways as a sum of consecutive naturals, for example, 94565473 + ... + 94565506.

It is an arithmetic number, because the mean of its divisors is an integer number (851089410).

Almost surely, 2^3215226643 is an apocalyptic number.

3215226643 is a deficient number, since it is larger than the sum of its proper divisors (189130997).

3215226643 is a wasteful number, since it uses less digits than its factorization.

3215226643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189130996.

The product of its digits is 51840, while the sum is 34.

The square root of 3215226643 is about 56702.9685554469. The cubic root of 3215226643 is about 1475.9462116828.

The spelling of 3215226643 in words is "three billion, two hundred fifteen million, two hundred twenty-six thousand, six hundred forty-three".