2116305 has 24 divisors (see below), whose sum is σ = 3706560. Its totient is φ = 1116960.

The previous prime is 2116291. The next prime is 2116307. The reversal of 2116305 is 5036112.

It is not a de Polignac number, because 2116305 - 2¹⁴ = 2099921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2116307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5716 + ... + 6074.

It is an arithmetic number, because the mean of its divisors is an integer number (154440).

2^2116305 is an apocalyptic number.

It is an amenable number.

2116305 is a deficient number, since it is larger than the sum of its proper divisors (1590255).

2116305 is a wasteful number, since it uses less digits than its factorization.

2116305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2116305 is about 1454.7525562789. The cubic root of 2116305 is about 128.3884885013.

The spelling of 2116305 in words is "two million, one hundred sixteen thousand, three hundred five".