51143406 has 16 divisors (see below), whose sum is σ = 102480384. Its totient is φ = 17015544.

The previous prime is 51143387. The next prime is 51143413. The reversal of 51143406 is 60434115.

51143406 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 an unprimeable number.

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, 4510 + ... + 11073.

It is an arithmetic number, because the mean of its divisors is an integer number (6405024).

Almost surely, 2^51143406 is an apocalyptic number.

51143406 is an abundant number, since it is smaller than the sum of its proper divisors (51336978).

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

51143406 is a wasteful number, since it uses less digits than its factorization.

51143406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16135.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 51143406 is about 7151.4618086095. The cubic root of 51143406 is about 371.1902405824.

It can be divided in two parts, 5 and 1143406, that added together give a palindrome (1143411).

The spelling of 51143406 in words is "fifty-one million, one hundred forty-three thousand, four hundred six".