2130105 has 8 divisors (see below), whose sum is σ = 3408192. Its totient is φ = 1136048.

The previous prime is 2130101. The next prime is 2130133. The reversal of 2130105 is 5010312.

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 2130105 - 2² = 2130101 is a prime.

It is a super-2 number, since 2×2130105² = 9074694622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2130101) 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, 70989 + ... + 71018.

It is an arithmetic number, because the mean of its divisors is an integer number (426024).

2^2130105 is an apocalyptic number.

It is an amenable number.

2130105 is a deficient number, since it is larger than the sum of its proper divisors (1278087).

2130105 is a wasteful number, since it uses less digits than its factorization.

2130105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142015.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 2130105 is about 1459.4879238966. The cubic root of 2130105 is about 128.6669492985. Note that the first 3 decimals are identical.

Adding to 2130105 its reverse (5010312), we get a palindrome (7140417).

The spelling of 2130105 in words is "two million, one hundred thirty thousand, one hundred five".