2099245 has 8 divisors (see below), whose sum is σ = 2667384. Its totient is φ = 1580544.

The previous prime is 2099221. The next prime is 2099249. The reversal of 2099245 is 5429902.

It can be written as a sum of positive squares in 4 ways, for example, as 956484 + 1142761 = 978^2 + 1069^2 .

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

It is a 5-Lehmer number, since φ(2099245) divides (2099245-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 2099245 - 2⁵ = 2099213 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 (2099249) 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, 12264 + ... + 12433.

It is an arithmetic number, because the mean of its divisors is an integer number (333423).

2^2099245 is an apocalyptic number.

It is an amenable number.

2099245 is a deficient number, since it is larger than the sum of its proper divisors (568139).

2099245 is a wasteful number, since it uses less digits than its factorization.

2099245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24719.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2099245 is about 1448.8771514521. The cubic root of 2099245 is about 128.0425680359.

The spelling of 2099245 in words is "two million, ninety-nine thousand, two hundred forty-five".