3218743061 has 2 divisors, whose sum is σ = 3218743062. Its totient is φ = 3218743060.

The previous prime is 3218742983. The next prime is 3218743067. The reversal of 3218743061 is 1603478123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3065726161 + 153016900 = 55369^2 + 12370^2 .

It is a cyclic number.

It is not a de Polignac number, because 3218743061 - 2³⁰ = 2145001237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3218743067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609371530 + 1609371531.

It is an arithmetic number, because the mean of its divisors is an integer number (1609371531).

Almost surely, 2^3218743061 is an apocalyptic number.

It is an amenable number.

3218743061 is a deficient number, since it is larger than the sum of its proper divisors (1).

3218743061 is an equidigital number, since it uses as much as digits as its factorization.

3218743061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3218743061 is about 56733.9674357435. The cubic root of 3218743061 is about 1476.4840849003.

The spelling of 3218743061 in words is "three billion, two hundred eighteen million, seven hundred forty-three thousand, sixty-one".