2102107 has 4 divisors (see below), whose sum is σ = 2402416. Its totient is φ = 1801800.

The previous prime is 2102099. The next prime is 2102117. The reversal of 2102107 is 7012012.

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

It is not a de Polignac number, because 2102107 - 2³ = 2102099 is a prime.

It is a Duffinian number.

2102107 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2102117) 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, 150144 + ... + 150157.

It is an arithmetic number, because the mean of its divisors is an integer number (600604).

2^2102107 is an apocalyptic number.

2102107 is a deficient number, since it is larger than the sum of its proper divisors (300309).

2102107 is an equidigital number, since it uses as much as digits as its factorization.

2102107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300308.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 2102107 is about 1449.8644764253. The cubic root of 2102107 is about 128.1007304418.

Adding to 2102107 its reverse (7012012), we get a palindrome (9114119).

It can be divided in two parts, 210210 and 7, that multiplied together give a triangular number (1471470 = T₁₇₁₅).

The spelling of 2102107 in words is "two million, one hundred two thousand, one hundred seven".