854548021 has 2 divisors, whose sum is σ = 854548022. Its totient is φ = 854548020.

The previous prime is 854547983. The next prime is 854548033. The reversal of 854548021 is 120845458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 827195121 + 27352900 = 28761^2 + 5230^2 .

It is a cyclic number.

It is not a de Polignac number, because 854548021 - 2¹¹ = 854545973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854548081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427274010 + 427274011.

It is an arithmetic number, because the mean of its divisors is an integer number (427274011).

Almost surely, 2^854548021 is an apocalyptic number.

It is an amenable number.

854548021 is a deficient number, since it is larger than the sum of its proper divisors (1).

854548021 is an equidigital number, since it uses as much as digits as its factorization.

854548021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51200, while the sum is 37.

The square root of 854548021 is about 29232.6533349267. The cubic root of 854548021 is about 948.9547214076.

The spelling of 854548021 in words is "eight hundred fifty-four million, five hundred forty-eight thousand, twenty-one".