83842141 has 2 divisors, whose sum is σ = 83842142. Its totient is φ = 83842140.

The previous prime is 83842123. The next prime is 83842163. The reversal of 83842141 is 14124838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54096025 + 29746116 = 7355^2 + 5454^2 .

It is a cyclic number.

It is not a de Polignac number, because 83842141 - 2⁷ = 83842013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83842441) 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, 41921070 + 41921071.

It is an arithmetic number, because the mean of its divisors is an integer number (41921071).

Almost surely, 2^83842141 is an apocalyptic number.

It is an amenable number.

83842141 is a deficient number, since it is larger than the sum of its proper divisors (1).

83842141 is an equidigital number, since it uses as much as digits as its factorization.

83842141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6144, while the sum is 31.

The square root of 83842141 is about 9156.5354255854. The cubic root of 83842141 is about 437.6773980995.

Adding to 83842141 its reverse (14124838), we get a palindrome (97966979).

The spelling of 83842141 in words is "eighty-three million, eight hundred forty-two thousand, one hundred forty-one".