3216425237 has 2 divisors, whose sum is σ = 3216425238. Its totient is φ = 3216425236.

The previous prime is 3216425227. The next prime is 3216425273. The reversal of 3216425237 is 7325246123.

Together with next prime (3216425273) 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., 2927459236 + 288966001 = 54106^2 + 16999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3216425237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3216425197 and 3216425206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3216425227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1608212618 + 1608212619.

It is an arithmetic number, because the mean of its divisors is an integer number (1608212619).

Almost surely, 2^3216425237 is an apocalyptic number.

It is an amenable number.

3216425237 is a deficient number, since it is larger than the sum of its proper divisors (1).

3216425237 is an equidigital number, since it uses as much as digits as its factorization.

3216425237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 35.

The square root of 3216425237 is about 56713.5366292740. The cubic root of 3216425237 is about 1476.1295933111.

The spelling of 3216425237 in words is "three billion, two hundred sixteen million, four hundred twenty-five thousand, two hundred thirty-seven".