3220812137 has 2 divisors, whose sum is σ = 3220812138. Its totient is φ = 3220812136.

The previous prime is 3220812131. The next prime is 3220812167. The reversal of 3220812137 is 7312180223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2482929241 + 737882896 = 49829^2 + 27164^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220812137 - 2³⁰ = 2147070313 is a prime.

It is not a weakly prime, because it can be changed into another prime (3220812131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610406068 + 1610406069.

It is an arithmetic number, because the mean of its divisors is an integer number (1610406069).

Almost surely, 2^3220812137 is an apocalyptic number.

It is an amenable number.

3220812137 is a deficient number, since it is larger than the sum of its proper divisors (1).

3220812137 is an equidigital number, since it uses as much as digits as its factorization.

3220812137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 3220812137 is about 56752.1994023139. The cubic root of 3220812137 is about 1476.8003888491.

The spelling of 3220812137 in words is "three billion, two hundred twenty million, eight hundred twelve thousand, one hundred thirty-seven".