83312143 has 2 divisors, whose sum is σ = 83312144. Its totient is φ = 83312142.

The previous prime is 83312107. The next prime is 83312147. The reversal of 83312143 is 34121338.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83312143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83312147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41656071 + 41656072.

It is an arithmetic number, because the mean of its divisors is an integer number (41656072).

Almost surely, 2^83312143 is an apocalyptic number.

83312143 is a deficient number, since it is larger than the sum of its proper divisors (1).

83312143 is an equidigital number, since it uses as much as digits as its factorization.

83312143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 83312143 is about 9127.5485756034. The cubic root of 83312143 is about 436.7532063071.

The spelling of 83312143 in words is "eighty-three million, three hundred twelve thousand, one hundred forty-three".