51443142 has 16 divisors (see below), whose sum is σ = 102956592. Its totient is φ = 17136000.

The previous prime is 51443123. The next prime is 51443143. The reversal of 51443142 is 24134415.

51443142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51443143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15642 + ... + 18642.

It is an arithmetic number, because the mean of its divisors is an integer number (6434787).

Almost surely, 2^51443142 is an apocalyptic number.

51443142 is an abundant number, since it is smaller than the sum of its proper divisors (51513450).

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

51443142 is a wasteful number, since it uses less digits than its factorization.

51443142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5863.

The product of its digits is 1920, while the sum is 24.

The square root of 51443142 is about 7172.3874686188. The cubic root of 51443142 is about 371.9139730545.

Adding to 51443142 its reverse (24134415), we get a palindrome (75577557).

The spelling of 51443142 in words is "fifty-one million, four hundred forty-three thousand, one hundred forty-two".