6531133133 has 16 divisors (see below), whose sum is σ = 7666874880. Its totient is φ = 5448087216.

The previous prime is 6531133111. The next prime is 6531133159. The reversal of 6531133133 is 3313311356.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6531133133 - 2¹⁰ = 6531132109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6531133096 and 6531133105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6531123133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44963 + ... + 122816.

It is an arithmetic number, because the mean of its divisors is an integer number (479179680).

Almost surely, 2^6531133133 is an apocalyptic number.

It is an amenable number.

6531133133 is a deficient number, since it is larger than the sum of its proper divisors (1135741747).

6531133133 is a wasteful number, since it uses less digits than its factorization.

6531133133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167936.

The product of its digits is 7290, while the sum is 29.

The square root of 6531133133 is about 80815.4263306208. The cubic root of 6531133133 is about 1869.2304432607.

Adding to 6531133133 its reverse (3313311356), we get a palindrome (9844444489).

The spelling of 6531133133 in words is "six billion, five hundred thirty-one million, one hundred thirty-three thousand, one hundred thirty-three".