51000130142 has 48 divisors (see below), whose sum is σ = 83665772928. Its totient is φ = 23304322080.

The previous prime is 51000130123. The next prime is 51000130151. The reversal of 51000130142 is 24103100015.

It is a self number, because there is not a number n which added to its sum of digits gives 51000130142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15589967 + ... + 15593237.

It is an arithmetic number, because the mean of its divisors is an integer number (1743036936).

Almost surely, 2^51000130142 is an apocalyptic number.

51000130142 is a deficient number, since it is larger than the sum of its proper divisors (32665642786).

51000130142 is a wasteful number, since it uses less digits than its factorization.

51000130142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745 (or 3732 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 51000130142 its reverse (24103100015), we get a palindrome (75103230157).

The spelling of 51000130142 in words is "fifty-one billion, one hundred thirty thousand, one hundred forty-two".