2108361 has 4 divisors (see below), whose sum is σ = 2811152. Its totient is φ = 1405572.

The previous prime is 2108347. The next prime is 2108363. The reversal of 2108361 is 1638012.

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 not a de Polignac number, because 2108361 - 2⁹ = 2107849 is a prime.

It is a super-2 number, since 2×2108361² = 8890372212642, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

2108361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2108363) 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, 351391 + ... + 351396.

It is an arithmetic number, because the mean of its divisors is an integer number (702788).

2^2108361 is an apocalyptic number.

It is an amenable number.

2108361 is a deficient number, since it is larger than the sum of its proper divisors (702791).

2108361 is an equidigital number, since it uses as much as digits as its factorization.

2108361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702790.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2108361 is about 1452.0196279665. The cubic root of 2108361 is about 128.2276425961.

The spelling of 2108361 in words is "two million, one hundred eight thousand, three hundred sixty-one".