8161071 has 12 divisors (see below), whose sum is σ = 11560392. Its totient is φ = 5120128.

The previous prime is 8161063. The next prime is 8161073. The reversal of 8161071 is 1701618.

It is not a de Polignac number, because 8161071 - 2³ = 8161063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8161073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3840 + ... + 5573.

It is an arithmetic number, because the mean of its divisors is an integer number (963366).

Almost surely, 2^8161071 is an apocalyptic number.

8161071 is a deficient number, since it is larger than the sum of its proper divisors (3399321).

8161071 is a wasteful number, since it uses less digits than its factorization.

8161071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9450 (or 9433 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 8161071 is about 2856.7588277627. The cubic root of 8161071 is about 201.3333494754. Note that the first 4 decimals are identical.

Adding to 8161071 its reverse (1701618), we get a palindrome (9862689).

The spelling of 8161071 in words is "eight million, one hundred sixty-one thousand, seventy-one".