2137105 has 4 divisors (see below), whose sum is σ = 2564532. Its totient is φ = 1709680.

The previous prime is 2137073. The next prime is 2137117. The reversal of 2137105 is 5017312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 501264 + 1635841 = 708^2 + 1279^2 .

It is not a de Polignac number, because 2137105 - 2⁵ = 2137073 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 213706 + ... + 213715.

It is an arithmetic number, because the mean of its divisors is an integer number (641133).

2^2137105 is an apocalyptic number.

It is an amenable number.

2137105 is a deficient number, since it is larger than the sum of its proper divisors (427427).

2137105 is an equidigital number, since it uses as much as digits as its factorization.

2137105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427426.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 2137105 is about 1461.8840583302. The cubic root of 2137105 is about 128.8077379518.

The spelling of 2137105 in words is "two million, one hundred thirty-seven thousand, one hundred five".