2148662513 has 2 divisors, whose sum is σ = 2148662514. Its totient is φ = 2148662512.

The previous prime is 2148662471. The next prime is 2148662533. The reversal of 2148662513 is 3152668412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2025630049 + 123032464 = 45007^2 + 11092^2 .

It is a cyclic number.

It is not a de Polignac number, because 2148662513 - 2⁶ = 2148662449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2148662533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074331256 + 1074331257.

It is an arithmetic number, because the mean of its divisors is an integer number (1074331257).

Almost surely, 2^2148662513 is an apocalyptic number.

It is an amenable number.

2148662513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148662513 is an equidigital number, since it uses as much as digits as its factorization.

2148662513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 38.

The square root of 2148662513 is about 46353.6677405359. The cubic root of 2148662513 is about 1290.3951903010.

The spelling of 2148662513 in words is "two billion, one hundred forty-eight million, six hundred sixty-two thousand, five hundred thirteen".