2108245 has 8 divisors (see below), whose sum is σ = 2537784. Its totient is φ = 1681344.

The previous prime is 2108243. The next prime is 2108251. The reversal of 2108245 is 5428012.

It can be written as a sum of positive squares in 4 ways, for example, as 40401 + 2067844 = 201^2 + 1438^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2108245 - 2¹ = 2108243 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 (2108243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2407 + ... + 3163.

It is an arithmetic number, because the mean of its divisors is an integer number (317223).

2^2108245 is an apocalyptic number.

It is an amenable number.

2108245 is a deficient number, since it is larger than the sum of its proper divisors (429539).

2108245 is an equidigital number, since it uses as much as digits as its factorization.

2108245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2108245 is about 1451.9796830535. The cubic root of 2108245 is about 128.2252908990.

The spelling of 2108245 in words is "two million, one hundred eight thousand, two hundred forty-five".