2138099 has 4 divisors (see below), whose sum is σ = 2141040. Its totient is φ = 2135160.

The previous prime is 2138093. The next prime is 2138137. The reversal of 2138099 is 9908312.

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 2138099 - 2¹² = 2134003 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2138093) 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 3 ways as a sum of consecutive naturals, for example, 509 + ... + 2129.

It is an arithmetic number, because the mean of its divisors is an integer number (535260).

2^2138099 is an apocalyptic number.

2138099 is a deficient number, since it is larger than the sum of its proper divisors (2941).

2138099 is a wasteful number, since it uses less digits than its factorization.

2138099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 2138099 is about 1462.2239910493. The cubic root of 2138099 is about 128.8277050017.

The spelling of 2138099 in words is "two million, one hundred thirty-eight thousand, ninety-nine".