2100437 has 4 divisors (see below), whose sum is σ = 2110080. Its totient is φ = 2090796.

The previous prime is 2100409. The next prime is 2100451. The reversal of 2100437 is 7340012.

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 2100437 - 2⁸ = 2100181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100407) 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, 4487 + ... + 4932.

It is an arithmetic number, because the mean of its divisors is an integer number (527520).

2^2100437 is an apocalyptic number.

It is an amenable number.

2100437 is a deficient number, since it is larger than the sum of its proper divisors (9643).

2100437 is an equidigital number, since it uses as much as digits as its factorization.

2100437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9642.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 2100437 is about 1449.2884461004. The cubic root of 2100437 is about 128.0667986302.

Adding to 2100437 its reverse (7340012), we get a palindrome (9440449).

The spelling of 2100437 in words is "two million, one hundred thousand, four hundred thirty-seven".