3213938531 has 2 divisors, whose sum is σ = 3213938532. Its totient is φ = 3213938530.

The previous prime is 3213938527. The next prime is 3213938549. The reversal of 3213938531 is 1358393123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3213938531 - 2² = 3213938527 is a prime.

It is a super-2 number, since 2×3213938531² = 20658801762092875922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3213938501) 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 as a sum of consecutive naturals, namely, 1606969265 + 1606969266.

It is an arithmetic number, because the mean of its divisors is an integer number (1606969266).

Almost surely, 2^3213938531 is an apocalyptic number.

3213938531 is a deficient number, since it is larger than the sum of its proper divisors (1).

3213938531 is an equidigital number, since it uses as much as digits as its factorization.

3213938531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 38.

The square root of 3213938531 is about 56691.6089999217. The cubic root of 3213938531 is about 1475.7490832287.

The spelling of 3213938531 in words is "three billion, two hundred thirteen million, nine hundred thirty-eight thousand, five hundred thirty-one".