8197223141 has 4 divisors (see below), whose sum is σ = 8371632192. Its totient is φ = 8022814092.

The previous prime is 8197223123. The next prime is 8197223147. The reversal of 8197223141 is 1413227918.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 8197223141 - 2⁶ = 8197223077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8197223095 and 8197223104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8197223147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87204455 + ... + 87204548.

It is an arithmetic number, because the mean of its divisors is an integer number (2092908048).

Almost surely, 2^8197223141 is an apocalyptic number.

It is an amenable number.

8197223141 is a deficient number, since it is larger than the sum of its proper divisors (174409051).

8197223141 is a wasteful number, since it uses less digits than its factorization.

8197223141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174409050.

The product of its digits is 24192, while the sum is 38.

The square root of 8197223141 is about 90538.5174442347. The cubic root of 8197223141 is about 2016.3020227472.

The spelling of 8197223141 in words is "eight billion, one hundred ninety-seven million, two hundred twenty-three thousand, one hundred forty-one".