854605049 has 2 divisors, whose sum is σ = 854605050. Its totient is φ = 854605048.

The previous prime is 854605013. The next prime is 854605057. The reversal of 854605049 is 940506458.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 535089424 + 319515625 = 23132^2 + 17875^2 .

It is a cyclic number.

It is not a de Polignac number, because 854605049 - 2¹⁶ = 854539513 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 854604997 and 854605015.

It is not a weakly prime, because it can be changed into another prime (854605649) 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, 427302524 + 427302525.

It is an arithmetic number, because the mean of its divisors is an integer number (427302525).

Almost surely, 2^854605049 is an apocalyptic number.

It is an amenable number.

854605049 is a deficient number, since it is larger than the sum of its proper divisors (1).

854605049 is an equidigital number, since it uses as much as digits as its factorization.

854605049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 854605049 is about 29233.6287347295. The cubic root of 854605049 is about 948.9758303388.

It can be divided in two parts, 85460 and 5049, that added together give a palindrome (90509).

The spelling of 854605049 in words is "eight hundred fifty-four million, six hundred five thousand, forty-nine".