84242141 has 2 divisors, whose sum is σ = 84242142. Its totient is φ = 84242140.

The previous prime is 84242113. The next prime is 84242153. The reversal of 84242141 is 14124248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55190041 + 29052100 = 7429^2 + 5390^2 .

It is a cyclic number.

It is not a de Polignac number, because 84242141 - 2¹⁸ = 83979997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84242141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84242111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42121070 + 42121071.

It is an arithmetic number, because the mean of its divisors is an integer number (42121071).

Almost surely, 2^84242141 is an apocalyptic number.

It is an amenable number.

84242141 is a deficient number, since it is larger than the sum of its proper divisors (1).

84242141 is an equidigital number, since it uses as much as digits as its factorization.

84242141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2048, while the sum is 26.

The square root of 84242141 is about 9178.3517583496. The cubic root of 84242141 is about 438.3723281952.

Adding to 84242141 its reverse (14124248), we get a palindrome (98366389).

The spelling of 84242141 in words is "eighty-four million, two hundred forty-two thousand, one hundred forty-one".