2103191 has 4 divisors (see below), whose sum is σ = 2160072. Its totient is φ = 2046312.

The previous prime is 2103187. The next prime is 2103193. The reversal of 2103191 is 1913012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2103191 - 2² = 2103187 is a prime.

It is a super-3 number, since 3×2103191³ = 27909843336367790613, which contains 333 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 (2103193) 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, 28385 + ... + 28458.

It is an arithmetic number, because the mean of its divisors is an integer number (540018).

2^2103191 is an apocalyptic number.

2103191 is a deficient number, since it is larger than the sum of its proper divisors (56881).

2103191 is an equidigital number, since it uses as much as digits as its factorization.

2103191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56880.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 2103191 is about 1450.2382562876. The cubic root of 2103191 is about 128.1227460242.

The spelling of 2103191 in words is "two million, one hundred three thousand, one hundred ninety-one".