854521201 has 4 divisors (see below), whose sum is σ = 904787172. Its totient is φ = 804255232.

The previous prime is 854521193. The next prime is 854521223. The reversal of 854521201 is 102125458.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102125458 = 2 ⋅51062729.

It can be written as a sum of positive squares in 2 ways, for example, as 595311201 + 259210000 = 24399^2 + 16100^2 .

It is a cyclic number.

It is not a de Polignac number, because 854521201 - 2³ = 854521193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 854521201.

It is not an unprimeable number, because it can be changed into a prime (854521301) 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 in 3 ways as a sum of consecutive naturals, for example, 25132960 + ... + 25132993.

It is an arithmetic number, because the mean of its divisors is an integer number (226196793).

Almost surely, 2^854521201 is an apocalyptic number.

It is an amenable number.

854521201 is a deficient number, since it is larger than the sum of its proper divisors (50265971).

854521201 is a wasteful number, since it uses less digits than its factorization.

854521201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50265970.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 854521201 is about 29232.1945977376. The cubic root of 854521201 is about 948.9447936520.

Adding to 854521201 its reverse (102125458), we get a palindrome (956646659).

The spelling of 854521201 in words is "eight hundred fifty-four million, five hundred twenty-one thousand, two hundred one".