2182812345 has 24 divisors (see below), whose sum is σ = 4324047936. Its totient is φ = 997856928.

The previous prime is 2182812341. The next prime is 2182812371. The reversal of 2182812345 is 5432182812.

It is a happy number.

It is not a de Polignac number, because 2182812345 - 2² = 2182812341 is a prime.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2182812341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3464467 + ... + 3465096.

It is an arithmetic number, because the mean of its divisors is an integer number (180168664).

Almost surely, 2^2182812345 is an apocalyptic number.

It is an amenable number.

2182812345 is a deficient number, since it is larger than the sum of its proper divisors (2141235591).

2182812345 is a wasteful number, since it uses less digits than its factorization.

2182812345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6929581 (or 6929578 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 2182812345 is about 46720.5773187789. The cubic root of 2182812345 is about 1297.1956005713.

The spelling of 2182812345 in words is "two billion, one hundred eighty-two million, eight hundred twelve thousand, three hundred forty-five".