6517420143 has 8 divisors (see below), whose sum is σ = 9358346928. Its totient is φ = 4010720064.

The previous prime is 6517420141. The next prime is 6517420171. The reversal of 6517420143 is 3410247156.

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

It is not a de Polignac number, because 6517420143 - 2¹ = 6517420141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6517420141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83556630 + ... + 83556707.

It is an arithmetic number, because the mean of its divisors is an integer number (1169793366).

Almost surely, 2^6517420143 is an apocalyptic number.

6517420143 is a deficient number, since it is larger than the sum of its proper divisors (2840926785).

6517420143 is a wasteful number, since it uses less digits than its factorization.

6517420143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167113353.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 6517420143 is about 80730.5403363560. The cubic root of 6517420143 is about 1867.9212932454.

Adding to 6517420143 its reverse (3410247156), we get a palindrome (9927667299).

The spelling of 6517420143 in words is "six billion, five hundred seventeen million, four hundred twenty thousand, one hundred forty-three".