1982237713 has 2 divisors, whose sum is σ = 1982237714. Its totient is φ = 1982237712.

The previous prime is 1982237669. The next prime is 1982237749. The reversal of 1982237713 is 3177322891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1966301649 + 15936064 = 44343^2 + 3992^2 .

It is an emirp because it is prime and its reverse (3177322891) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1982237713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1982237713.

It is not a weakly prime, because it can be changed into another prime (1982237753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991118856 + 991118857.

It is an arithmetic number, because the mean of its divisors is an integer number (991118857).

Almost surely, 2^1982237713 is an apocalyptic number.

It is an amenable number.

1982237713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982237713 is an equidigital number, since it uses as much as digits as its factorization.

1982237713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 1982237713 is about 44522.3282522377. The cubic root of 1982237713 is about 1256.1801067754.

The spelling of 1982237713 in words is "one billion, nine hundred eighty-two million, two hundred thirty-seven thousand, seven hundred thirteen".