6531172122 has 8 divisors (see below), whose sum is σ = 13062344256. Its totient is φ = 2177057372.

The previous prime is 6531172117. The next prime is 6531172159. The reversal of 6531172122 is 2212711356.

It is a sphenic number, since it is the product of 3 distinct primes.

6531172122 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 6531172122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544264338 + ... + 544264349.

It is an arithmetic number, because the mean of its divisors is an integer number (1632793032).

Almost surely, 2^6531172122 is an apocalyptic number.

6531172122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6531172122 is a wasteful number, since it uses less digits than its factorization.

6531172122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088528692.

The product of its digits is 5040, while the sum is 30.

The square root of 6531172122 is about 80815.6675527710. The cubic root of 6531172122 is about 1869.2341628440.

Adding to 6531172122 its reverse (2212711356), we get a palindrome (8743883478).

The spelling of 6531172122 in words is "six billion, five hundred thirty-one million, one hundred seventy-two thousand, one hundred twenty-two".