6517420142 has 4 divisors (see below), whose sum is σ = 9776130216. Its totient is φ = 3258710070.

The previous prime is 6517420141. The next prime is 6517420171. The reversal of 6517420142 is 2410247156.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×6517420142³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6517420099 and 6517420108.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 1629355034 + ... + 1629355037.

It is an arithmetic number, because the mean of its divisors is an integer number (2444032554).

Almost surely, 2^6517420142 is an apocalyptic number.

6517420142 is a deficient number, since it is larger than the sum of its proper divisors (3258710074).

6517420142 is a wasteful number, since it uses less digits than its factorization.

6517420142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258710073.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 6517420142 is about 80730.5403301625. The cubic root of 6517420142 is about 1867.9212931499.

Adding to 6517420142 its reverse (2410247156), we get a palindrome (8927667298).

The spelling of 6517420142 in words is "six billion, five hundred seventeen million, four hundred twenty thousand, one hundred forty-two".