8031161 has 4 divisors (see below), whose sum is σ = 8038800. Its totient is φ = 8023524.

The previous prime is 8031131. The next prime is 8031181. The reversal of 8031161 is 1611308.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8031161 - 2⁶ = 8031097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8031131) 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, 1931 + ... + 4448.

It is an arithmetic number, because the mean of its divisors is an integer number (2009700).

Almost surely, 2^8031161 is an apocalyptic number.

It is an amenable number.

8031161 is a deficient number, since it is larger than the sum of its proper divisors (7639).

8031161 is a wasteful number, since it uses less digits than its factorization.

8031161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7638.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 8031161 is about 2833.9303096583. The cubic root of 8031161 is about 200.2593385722.

Adding to 8031161 its reverse (1611308), we get a palindrome (9642469).

It can be divided in two parts, 8031 and 161, that added together give a 13-th power (8192 = 2¹³).

The spelling of 8031161 in words is "eight million, thirty-one thousand, one hundred sixty-one".