2180099 has 4 divisors (see below), whose sum is σ = 2183160. Its totient is φ = 2177040.

The previous prime is 2180089. The next prime is 2180107. The reversal of 2180099 is 9900812.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2180099 - 2⁴ = 2180083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2180039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164 + ... + 2094.

It is an arithmetic number, because the mean of its divisors is an integer number (545790).

2^2180099 is an apocalyptic number.

2180099 is a deficient number, since it is larger than the sum of its proper divisors (3061).

2180099 is a wasteful number, since it uses less digits than its factorization.

2180099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 2180099 is about 1476.5158312731. The cubic root of 2180099 is about 129.6657884687.

The spelling of 2180099 in words is "two million, one hundred eighty thousand, ninety-nine".