7071161 has 4 divisors (see below), whose sum is σ = 7087092. Its totient is φ = 7055232.

The previous prime is 7071151. The next prime is 7071187. The reversal of 7071161 is 1611707.

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 4687225 + 2383936 = 2165^2 + 1544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7071161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7071121) 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, 7280 + ... + 8193.

It is an arithmetic number, because the mean of its divisors is an integer number (1771773).

Almost surely, 2^7071161 is an apocalyptic number.

It is an amenable number.

7071161 is a deficient number, since it is larger than the sum of its proper divisors (15931).

7071161 is a wasteful number, since it uses less digits than its factorization.

7071161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15930.

The product of its (nonzero) digits is 294, while the sum is 23.

The square root of 7071161 is about 2659.1654705941. The cubic root of 7071161 is about 191.9391535347.

Adding to 7071161 its reverse (1611707), we get a palindrome (8682868).

The spelling of 7071161 in words is "seven million, seventy-one thousand, one hundred sixty-one".