2730105 has 56 divisors (see below), whose sum is σ = 5666112. Its totient is φ = 1236384.

The previous prime is 2730071. The next prime is 2730109. The reversal of 2730105 is 5010372.

2730105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2730105 - 2⁶ = 2730041 is a prime.

It is a super-2 number, since 2×2730105² = 14906946622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2730109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 25462 + ... + 25568.

2^2730105 is an apocalyptic number.

It is an amenable number.

2730105 is an abundant number, since it is smaller than the sum of its proper divisors (2936007).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2730105 is an equidigital number, since it uses as much as digits as its factorization.

2730105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 2730105 is about 1652.3029383258. The cubic root of 2730105 is about 139.7632904775.

Adding to 2730105 its reverse (5010372), we get a palindrome (7740477).

The spelling of 2730105 in words is "two million, seven hundred thirty thousand, one hundred five".