2971205 has 4 divisors (see below), whose sum is σ = 3565452. Its totient is φ = 2376960.

The previous prime is 2971193. The next prime is 2971223. The reversal of 2971205 is 5021792.

2971205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1934881 + 1036324 = 1391^2 + 1018^2 .

It is not a de Polignac number, because 2971205 - 2¹⁰ = 2970181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 297116 + ... + 297125.

It is an arithmetic number, because the mean of its divisors is an integer number (891363).

2^2971205 is an apocalyptic number.

It is an amenable number.

2971205 is a deficient number, since it is larger than the sum of its proper divisors (594247).

2971205 is an equidigital number, since it uses as much as digits as its factorization.

2971205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594246.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 2971205 is about 1723.7183644668. The cubic root of 2971205 is about 143.7620330192.

Adding to 2971205 its reverse (5021792), we get a palindrome (7992997).

The spelling of 2971205 in words is "two million, nine hundred seventy-one thousand, two hundred five".