2105499 has 8 divisors (see below), whose sum is σ = 3062592. Its totient is φ = 1276040.

The previous prime is 2105497. The next prime is 2105503. The reversal of 2105499 is 9945012.

It is a happy number.

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 2105499 - 2¹ = 2105497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105497) by changing a digit.

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, 31869 + ... + 31934.

It is an arithmetic number, because the mean of its divisors is an integer number (382824).

2^2105499 is an apocalyptic number.

2105499 is a deficient number, since it is larger than the sum of its proper divisors (957093).

2105499 is a wasteful number, since it uses less digits than its factorization.

2105499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63817.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 2105499 is about 1451.0337694210. The cubic root of 2105499 is about 128.1695953428.

It can be divided in two parts, 2 and 105499, that added together give a palindrome (105501).

The spelling of 2105499 in words is "two million, one hundred five thousand, four hundred ninety-nine".