2661171 has 4 divisors (see below), whose sum is σ = 3548232. Its totient is φ = 1774112.

The previous prime is 2661161. The next prime is 2661181. The reversal of 2661171 is 1711662.

2661171 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 is an interprime number because it is at equal distance from previous prime (2661161) and next prime (2661181).

It is a cyclic number.

It is not a de Polignac number, because 2661171 - 2⁶ = 2661107 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2661161) 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 3 ways as a sum of consecutive naturals, for example, 443526 + ... + 443531.

It is an arithmetic number, because the mean of its divisors is an integer number (887058).

2^2661171 is an apocalyptic number.

2661171 is a deficient number, since it is larger than the sum of its proper divisors (887061).

2661171 is an equidigital number, since it uses as much as digits as its factorization.

2661171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887060.

The product of its digits is 504, while the sum is 24.

The square root of 2661171 is about 1631.3095966125. The cubic root of 2661171 is about 138.5769272929.

The spelling of 2661171 in words is "two million, six hundred sixty-one thousand, one hundred seventy-one".