2137823 has 8 divisors (see below), whose sum is σ = 2311920. Its totient is φ = 1969920.

The previous prime is 2137813. The next prime is 2137829. The reversal of 2137823 is 3287312.

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

It is a de Polignac number, because none of the positive numbers 2^k-2137823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2137792 and 2137801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137829) 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 7 ways as a sum of consecutive naturals, for example, 818 + ... + 2223.

It is an arithmetic number, because the mean of its divisors is an integer number (288990).

2^2137823 is an apocalyptic number.

2137823 is a deficient number, since it is larger than the sum of its proper divisors (174097).

2137823 is a wasteful number, since it uses less digits than its factorization.

2137823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097.

The product of its digits is 2016, while the sum is 26.

The square root of 2137823 is about 1462.1296112178. The cubic root of 2137823 is about 128.8221614516.

The spelling of 2137823 in words is "two million, one hundred thirty-seven thousand, eight hundred twenty-three".