8043157121 has 4 divisors (see below), whose sum is σ = 8466481200. Its totient is φ = 7619833044.

The previous prime is 8043157043. The next prime is 8043157169. The reversal of 8043157121 is 1217513408.

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 a de Polignac number, because none of the positive numbers 2^k-8043157121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8043151121) 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, 211662011 + ... + 211662048.

It is an arithmetic number, because the mean of its divisors is an integer number (2116620300).

Almost surely, 2^8043157121 is an apocalyptic number.

It is an amenable number.

8043157121 is a deficient number, since it is larger than the sum of its proper divisors (423324079).

8043157121 is a wasteful number, since it uses less digits than its factorization.

8043157121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423324078.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 8043157121 is about 89683.6502435087. The cubic root of 8043157121 is about 2003.5899789201.

The spelling of 8043157121 in words is "eight billion, forty-three million, one hundred fifty-seven thousand, one hundred twenty-one".