8551142140 has 48 divisors (see below), whose sum is σ = 18086695200. Its totient is φ = 3395911680.

The previous prime is 8551142111. The next prime is 8551142177. The reversal of 8551142140 is 412411558.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1892524 + ... + 1897036.

It is an arithmetic number, because the mean of its divisors is an integer number (376806150).

Almost surely, 2^8551142140 is an apocalyptic number.

It is an amenable number.

8551142140 is an abundant number, since it is smaller than the sum of its proper divisors (9535553060).

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

8551142140 is a wasteful number, since it uses less digits than its factorization.

8551142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5182 (or 5180 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 8551142140 is about 92472.3858240935. The cubic root of 8551142140 is about 2044.9124003262.

Adding to 8551142140 its reverse (412411558), we get a palindrome (8963553698).

The spelling of 8551142140 in words is "eight billion, five hundred fifty-one million, one hundred forty-two thousand, one hundred forty".