3243231437 has 2 divisors, whose sum is σ = 3243231438. Its totient is φ = 3243231436.

The previous prime is 3243231427. The next prime is 3243231473. The reversal of 3243231437 is 7341323423.

3243231437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (3243231473) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2683861636 + 559369801 = 51806^2 + 23651^2 .

It is a cyclic number.

It is not a de Polignac number, because 3243231437 - 2¹⁶ = 3243165901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3243231427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1621615718 + 1621615719.

It is an arithmetic number, because the mean of its divisors is an integer number (1621615719).

Almost surely, 2^3243231437 is an apocalyptic number.

It is an amenable number.

3243231437 is a deficient number, since it is larger than the sum of its proper divisors (1).

3243231437 is an equidigital number, since it uses as much as digits as its factorization.

3243231437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 32.

The square root of 3243231437 is about 56949.3760896465. The cubic root of 3243231437 is about 1480.2190199665.

The spelling of 3243231437 in words is "three billion, two hundred forty-three million, two hundred thirty-one thousand, four hundred thirty-seven".