2100349 has 4 divisors (see below), whose sum is σ = 2103264. Its totient is φ = 2097436.

The previous prime is 2100313. The next prime is 2100353. The reversal of 2100349 is 9430012.

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, 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 2100349 - 2⁷ = 2100221 is a prime.

It is a super-2 number, since 2×2100349² = 8822931843602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100649) 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, 504 + ... + 2110.

It is an arithmetic number, because the mean of its divisors is an integer number (525816).

2^2100349 is an apocalyptic number.

It is an amenable number.

2100349 is a deficient number, since it is larger than the sum of its proper divisors (2915).

2100349 is a wasteful number, since it uses less digits than its factorization.

2100349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2100349 is about 1449.2580860564. The cubic root of 2100349 is about 128.0650101078.

The spelling of 2100349 in words is "two million, one hundred thousand, three hundred forty-nine".