2195705 has 4 divisors (see below), whose sum is σ = 2634852. Its totient is φ = 1756560.

The previous prime is 2195701. The next prime is 2195707. The reversal of 2195705 is 5075912.

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 1371241 + 824464 = 1171^2 + 908^2 .

It is not a de Polignac number, because 2195705 - 2² = 2195701 is a prime.

It is a super-2 number, since 2×2195705² = 9642240894050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2195701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219566 + ... + 219575.

It is an arithmetic number, because the mean of its divisors is an integer number (658713).

2^2195705 is an apocalyptic number.

It is an amenable number.

2195705 is a deficient number, since it is larger than the sum of its proper divisors (439147).

2195705 is an equidigital number, since it uses as much as digits as its factorization.

2195705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439146.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 2195705 is about 1481.7911458772. The cubic root of 2195705 is about 129.9744525735.

The spelling of 2195705 in words is "two million, one hundred ninety-five thousand, seven hundred five".