854521199 has 4 divisors (see below), whose sum is σ = 976595664. Its totient is φ = 732446736.

The previous prime is 854521193. The next prime is 854521223. The reversal of 854521199 is 991125458.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991125458 = 2 ⋅495562729.

It is not a de Polignac number, because 854521199 - 2⁴ = 854521183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854521193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61037222 + ... + 61037235.

It is an arithmetic number, because the mean of its divisors is an integer number (244148916).

Almost surely, 2^854521199 is an apocalyptic number.

854521199 is a deficient number, since it is larger than the sum of its proper divisors (122074465).

854521199 is a wasteful number, since it uses less digits than its factorization.

854521199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122074464.

The product of its digits is 129600, while the sum is 44.

The square root of 854521199 is about 29232.1945635288. The cubic root of 854521199 is about 948.9447929116.

The spelling of 854521199 in words is "eight hundred fifty-four million, five hundred twenty-one thousand, one hundred ninety-nine".