8121133 has 4 divisors (see below), whose sum is σ = 8127040. Its totient is φ = 8115228.

The previous prime is 8121119. The next prime is 8121199. The reversal of 8121133 is 3311218.

8121133 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8121133 - 2¹³ = 8112941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8121133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8121103) 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, 316 + ... + 4042.

It is an arithmetic number, because the mean of its divisors is an integer number (2031760).

Almost surely, 2^8121133 is an apocalyptic number.

It is an amenable number.

8121133 is a deficient number, since it is larger than the sum of its proper divisors (5907).

8121133 is a wasteful number, since it uses less digits than its factorization.

8121133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5906.

The product of its digits is 144, while the sum is 19.

The square root of 8121133 is about 2849.7601653473. The cubic root of 8121133 is about 201.0043892344.

The spelling of 8121133 in words is "eight million, one hundred twenty-one thousand, one hundred thirty-three".