8197151 has 4 divisors (see below), whose sum is σ = 8628600. Its totient is φ = 7765704.

The previous prime is 8197141. The next prime is 8197153. The reversal of 8197151 is 1517918.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8197151 - 2¹⁰ = 8196127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8197153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215696 + ... + 215733.

It is an arithmetic number, because the mean of its divisors is an integer number (2157150).

Almost surely, 2^8197151 is an apocalyptic number.

8197151 is a deficient number, since it is larger than the sum of its proper divisors (431449).

8197151 is a wasteful number, since it uses less digits than its factorization.

8197151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431448.

The product of its digits is 2520, while the sum is 32.

The square root of 8197151 is about 2863.0667124606. The cubic root of 8197151 is about 201.6296107798.

The spelling of 8197151 in words is "eight million, one hundred ninety-seven thousand, one hundred fifty-one".