2163237 has 4 divisors (see below), whose sum is σ = 2884320. Its totient is φ = 1442156.

The previous prime is 2163223. The next prime is 2163241. The reversal of 2163237 is 7323612.

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 2163237 - 2⁴ = 2163221 is a prime.

It is a D-number.

2163237 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163247) 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, 360537 + ... + 360542.

It is an arithmetic number, because the mean of its divisors is an integer number (721080).

2^2163237 is an apocalyptic number.

It is an amenable number.

2163237 is a deficient number, since it is larger than the sum of its proper divisors (721083).

2163237 is an equidigital number, since it uses as much as digits as its factorization.

2163237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721082.

The product of its digits is 1512, while the sum is 24.

The square root of 2163237 is about 1470.7946831560. The cubic root of 2163237 is about 129.3306223673.

Adding to 2163237 its reverse (7323612), we get a palindrome (9486849).

The spelling of 2163237 in words is "two million, one hundred sixty-three thousand, two hundred thirty-seven".