8203161 has 4 divisors (see below), whose sum is σ = 10937552. Its totient is φ = 5468772.

The previous prime is 8203147. The next prime is 8203187. The reversal of 8203161 is 1613028.

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.

It is not a de Polignac number, because 8203161 - 2¹⁰ = 8202137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8203361) 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, 1367191 + ... + 1367196.

It is an arithmetic number, because the mean of its divisors is an integer number (2734388).

Almost surely, 2^8203161 is an apocalyptic number.

It is an amenable number.

8203161 is a deficient number, since it is larger than the sum of its proper divisors (2734391).

8203161 is a wasteful number, since it uses less digits than its factorization.

8203161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734390.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 8203161 is about 2864.1160940157. The cubic root of 8203161 is about 201.6788757796.

Adding to 8203161 its reverse (1613028), we get a palindrome (9816189).

The spelling of 8203161 in words is "eight million, two hundred three thousand, one hundred sixty-one".