2138117 has 4 divisors (see below), whose sum is σ = 2141376. Its totient is φ = 2134860.

The previous prime is 2138093. The next prime is 2138137. The reversal of 2138117 is 7118312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2138117 - 2¹² = 2134021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2138092 and 2138101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263 + ... + 2084.

It is an arithmetic number, because the mean of its divisors is an integer number (535344).

2^2138117 is an apocalyptic number.

It is an amenable number.

2138117 is a deficient number, since it is larger than the sum of its proper divisors (3259).

2138117 is an equidigital number, since it uses as much as digits as its factorization.

2138117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258.

The product of its digits is 336, while the sum is 23.

The square root of 2138117 is about 1462.2301460440. The cubic root of 2138117 is about 128.8280665210.

The spelling of 2138117 in words is "two million, one hundred thirty-eight thousand, one hundred seventeen".