853861541 has 4 divisors (see below), whose sum is σ = 919543212. Its totient is φ = 788179872.

The previous prime is 853861447. The next prime is 853861553. The reversal of 853861541 is 145168358.

853861541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145168358 = 2 ⋅72584179.

It can be written as a sum of positive squares in 2 ways, for example, as 313113025 + 540748516 = 17695^2 + 23254^2 .

It is a cyclic number.

It is not a de Polignac number, because 853861541 - 2¹⁰ = 853860517 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 (853861441) 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, 32840816 + ... + 32840841.

It is an arithmetic number, because the mean of its divisors is an integer number (229885803).

Almost surely, 2^853861541 is an apocalyptic number.

It is an amenable number.

853861541 is a deficient number, since it is larger than the sum of its proper divisors (65681671).

853861541 is a wasteful number, since it uses less digits than its factorization.

853861541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65681670.

The product of its digits is 115200, while the sum is 41.

The square root of 853861541 is about 29220.9093116556. The cubic root of 853861541 is about 948.7005469052.

The spelling of 853861541 in words is "eight hundred fifty-three million, eight hundred sixty-one thousand, five hundred forty-one".