854665345 has 4 divisors (see below), whose sum is σ = 1025598420. Its totient is φ = 683732272.

The previous prime is 854665297. The next prime is 854665367. The reversal of 854665345 is 543566458.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543566458 = 2 ⋅271783229.

It can be written as a sum of positive squares in 2 ways, for example, as 336465649 + 518199696 = 18343^2 + 22764^2 .

It is a cyclic number.

It is not a de Polignac number, because 854665345 - 2²¹ = 852568193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 854665295 and 854665304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85466530 + ... + 85466539.

It is an arithmetic number, because the mean of its divisors is an integer number (256399605).

Almost surely, 2^854665345 is an apocalyptic number.

It is an amenable number.

854665345 is a deficient number, since it is larger than the sum of its proper divisors (170933075).

854665345 is a wasteful number, since it uses less digits than its factorization.

854665345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170933074.

The product of its digits is 1728000, while the sum is 46.

The square root of 854665345 is about 29234.6599946023. The cubic root of 854665345 is about 948.9981478998.

The spelling of 854665345 in words is "eight hundred fifty-four million, six hundred sixty-five thousand, three hundred forty-five".