2133820345 has 8 divisors (see below), whose sum is σ = 2580747264. Its totient is φ = 1693614384.

The previous prime is 2133820309. The next prime is 2133820369. The reversal of 2133820345 is 5430283312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2133820345 - 2⁷ = 2133820217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1679539 + ... + 1680808.

It is an arithmetic number, because the mean of its divisors is an integer number (322593408).

Almost surely, 2^2133820345 is an apocalyptic number.

It is an amenable number.

2133820345 is a deficient number, since it is larger than the sum of its proper divisors (446926919).

2133820345 is a wasteful number, since it uses less digits than its factorization.

2133820345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360479.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2133820345 is about 46193.2932902602. The cubic root of 2133820345 is about 1287.4171313113.

The spelling of 2133820345 in words is "two billion, one hundred thirty-three million, eight hundred twenty thousand, three hundred forty-five".