84148553 has 2 divisors, whose sum is σ = 84148554. Its totient is φ = 84148552.

The previous prime is 84148531. The next prime is 84148607. The reversal of 84148553 is 35584148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84143929 + 4624 = 9173^2 + 68^2 .

It is a cyclic number.

It is not a de Polignac number, because 84148553 - 2¹⁰ = 84147529 is a prime.

It is not a weakly prime, because it can be changed into another prime (84144553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42074276 + 42074277.

It is an arithmetic number, because the mean of its divisors is an integer number (42074277).

Almost surely, 2^84148553 is an apocalyptic number.

It is an amenable number.

84148553 is a deficient number, since it is larger than the sum of its proper divisors (1).

84148553 is an equidigital number, since it uses as much as digits as its factorization.

84148553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76800, while the sum is 38.

The square root of 84148553 is about 9173.2520405797. The cubic root of 84148553 is about 438.2099328628.

It can be divided in two parts, 841 and 48553, that added together give a palindrome (49394).

The spelling of 84148553 in words is "eighty-four million, one hundred forty-eight thousand, five hundred fifty-three".