2831054645 has 4 divisors (see below), whose sum is σ = 3397265580. Its totient is φ = 2264843712.

The previous prime is 2831054621. The next prime is 2831054651. The reversal of 2831054645 is 5464501382.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5464501382 = 2 ⋅2732250691.

It can be written as a sum of positive squares in 2 ways, for example, as 1789120804 + 1041933841 = 42298^2 + 32279^2 .

It is a cyclic number.

It is not a de Polignac number, because 2831054645 - 2⁸ = 2831054389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2831054599 and 2831054608.

It is a congruent number.

It is an unprimeable number.

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, 283105460 + ... + 283105469.

It is an arithmetic number, because the mean of its divisors is an integer number (849316395).

Almost surely, 2^2831054645 is an apocalyptic number.

It is an amenable number.

2831054645 is a deficient number, since it is larger than the sum of its proper divisors (566210935).

2831054645 is an equidigital number, since it uses as much as digits as its factorization.

2831054645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566210934.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 2831054645 is about 53207.6558870996. The cubic root of 2831054645 is about 1414.6513468807.

The spelling of 2831054645 in words is "two billion, eight hundred thirty-one million, fifty-four thousand, six hundred forty-five".