83181713 has 2 divisors, whose sum is σ = 83181714. Its totient is φ = 83181712.

The previous prime is 83181701. The next prime is 83181719. The reversal of 83181713 is 31718138.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72046144 + 11135569 = 8488^2 + 3337^2 .

It is a cyclic number.

It is not a de Polignac number, because 83181713 - 2¹⁸ = 82919569 is a prime.

It is a super-2 number, since 2×83181713² = 13838394755228738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83181713.

It is not a weakly prime, because it can be changed into another prime (83181719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41590856 + 41590857.

It is an arithmetic number, because the mean of its divisors is an integer number (41590857).

Almost surely, 2^83181713 is an apocalyptic number.

It is an amenable number.

83181713 is a deficient number, since it is larger than the sum of its proper divisors (1).

83181713 is an equidigital number, since it uses as much as digits as its factorization.

83181713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 32.

The square root of 83181713 is about 9120.4009232051. The cubic root of 83181713 is about 436.5251664230.

The spelling of 83181713 in words is "eighty-three million, one hundred eighty-one thousand, seven hundred thirteen".