84523141 has 2 divisors, whose sum is σ = 84523142. Its totient is φ = 84523140.

The previous prime is 84523111. The next prime is 84523147. The reversal of 84523141 is 14132548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79727041 + 4796100 = 8929^2 + 2190^2 .

It is a cyclic number.

It is not a de Polignac number, because 84523141 - 2¹⁷ = 84392069 is a prime.

It is a super-2 number, since 2×84523141² = 14288322729011762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84523147) 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, 42261570 + 42261571.

It is an arithmetic number, because the mean of its divisors is an integer number (42261571).

Almost surely, 2^84523141 is an apocalyptic number.

It is an amenable number.

84523141 is a deficient number, since it is larger than the sum of its proper divisors (1).

84523141 is an equidigital number, since it uses as much as digits as its factorization.

84523141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 28.

The square root of 84523141 is about 9193.6467737237. The cubic root of 84523141 is about 438.8592021533.

Adding to 84523141 its reverse (14132548), we get a palindrome (98655689).

The spelling of 84523141 in words is "eighty-four million, five hundred twenty-three thousand, one hundred forty-one".