2106245 has 8 divisors (see below), whose sum is σ = 2660640. Its totient is φ = 1596240.

The previous prime is 2106239. The next prime is 2106257. The reversal of 2106245 is 5426012.

It is a happy number.

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

It is not a de Polignac number, because 2106245 - 2⁴ = 2106229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10991 + ... + 11180.

It is an arithmetic number, because the mean of its divisors is an integer number (332580).

2^2106245 is an apocalyptic number.

It is an amenable number.

2106245 is a deficient number, since it is larger than the sum of its proper divisors (554395).

2106245 is a wasteful number, since it uses less digits than its factorization.

2106245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22195.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2106245 is about 1451.2908047666. The cubic root of 2106245 is about 128.1847308250.

The spelling of 2106245 in words is "two million, one hundred six thousand, two hundred forty-five".