8192997121 has 8 divisors (see below), whose sum is σ = 8265075840. Its totient is φ = 8121192768.

The previous prime is 8192997073. The next prime is 8192997149. The reversal of 8192997121 is 1217992918.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8192997121 - 2²³ = 8184608513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8192997191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8376 + ... + 128281.

It is an arithmetic number, because the mean of its divisors is an integer number (1033134480).

Almost surely, 2^8192997121 is an apocalyptic number.

It is an amenable number.

8192997121 is a deficient number, since it is larger than the sum of its proper divisors (72078719).

8192997121 is a wasteful number, since it uses less digits than its factorization.

8192997121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137183.

The product of its digits is 163296, while the sum is 49.

The square root of 8192997121 is about 90515.1761916199. The cubic root of 8192997121 is about 2015.9554664704.

The spelling of 8192997121 in words is "eight billion, one hundred ninety-two million, nine hundred ninety-seven thousand, one hundred twenty-one".