3215005231 has 2 divisors, whose sum is σ = 3215005232. Its totient is φ = 3215005230.

The previous prime is 3215005193. The next prime is 3215005237. The reversal of 3215005231 is 1325005123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3215005231 - 2⁷ = 3215005103 is a prime.

It is a super-2 number, since 2×3215005231² = 20672517270714726722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3215005237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1607502615 + 1607502616.

It is an arithmetic number, because the mean of its divisors is an integer number (1607502616).

Almost surely, 2^3215005231 is an apocalyptic number.

3215005231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3215005231 is an equidigital number, since it uses as much as digits as its factorization.

3215005231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 3215005231 is about 56701.0161372792. The cubic root of 3215005231 is about 1475.9123312610.

The spelling of 3215005231 in words is "three billion, two hundred fifteen million, five thousand, two hundred thirty-one".