8133131 has 4 divisors (see below), whose sum is σ = 8139600. Its totient is φ = 8126664.

The previous prime is 8133127. The next prime is 8133133. The reversal of 8133131 is 1313318.

It is a happy number.

It is a semiprime because it is the product of two primes, 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 8133131 - 2² = 8133127 is a prime.

It is a super-2 number, since 2×8133131² = 132295639726322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8133133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671 + ... + 4088.

It is an arithmetic number, because the mean of its divisors is an integer number (2034900).

Almost surely, 2^8133131 is an apocalyptic number.

8133131 is a deficient number, since it is larger than the sum of its proper divisors (6469).

8133131 is a wasteful number, since it uses less digits than its factorization.

8133131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6468.

The product of its digits is 216, while the sum is 20.

The square root of 8133131 is about 2851.8644778460. The cubic root of 8133131 is about 201.1033271533.

Adding to 8133131 its reverse (1313318), we get a palindrome (9446449).

The spelling of 8133131 in words is "eight million, one hundred thirty-three thousand, one hundred thirty-one".