8129133 has 8 divisors (see below), whose sum is σ = 12043200. Its totient is φ = 5419404.

The previous prime is 8129129. The next prime is 8129141. The reversal of 8129133 is 3319218.

8129133 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8129133 - 2² = 8129129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 301079 = 8129133 / (8 + 1 + 2 + 9 + 1 + 3 + 3).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8129097 and 8129106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8129113) 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, 150513 + ... + 150566.

It is an arithmetic number, because the mean of its divisors is an integer number (1505400).

Almost surely, 2^8129133 is an apocalyptic number.

It is an amenable number.

8129133 is a deficient number, since it is larger than the sum of its proper divisors (3914067).

8129133 is a wasteful number, since it uses less digits than its factorization.

8129133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301088 (or 301082 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 8129133 is about 2851.1634467354. The cubic root of 8129133 is about 201.0703696580.

The spelling of 8129133 in words is "eight million, one hundred twenty-nine thousand, one hundred thirty-three".