8133129 has 40 divisors (see below), whose sum is σ = 13009920. Its totient is φ = 5054400.

The previous prime is 8133127. The next prime is 8133133. The reversal of 8133129 is 9213318.

It is not a de Polignac number, because 8133129 - 2¹ = 8133127 is a prime.

It is a super-2 number, since 2×8133129² = 132295574661282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8133127) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 102912 + ... + 102990.

It is an arithmetic number, because the mean of its divisors is an integer number (325248).

Almost surely, 2^8133129 is an apocalyptic number.

It is an amenable number.

8133129 is a deficient number, since it is larger than the sum of its proper divisors (4876791).

8133129 is a wasteful number, since it uses less digits than its factorization.

8133129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 154 counting only the distinct ones).

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

The square root of 8133129 is about 2851.8641271982. The cubic root of 8133129 is about 201.1033106691.

The spelling of 8133129 in words is "eight million, one hundred thirty-three thousand, one hundred twenty-nine".