51146871 has 16 divisors (see below), whose sum is σ = 71646720. Its totient is φ = 32392800.

The previous prime is 51146867. The next prime is 51146933. The reversal of 51146871 is 17864115.

It is a happy number.

51146871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51146871 - 2² = 51146867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51146801) 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 15 ways as a sum of consecutive naturals, for example, 7965 + ... + 12873.

It is an arithmetic number, because the mean of its divisors is an integer number (4477920).

Almost surely, 2^51146871 is an apocalyptic number.

51146871 is a deficient number, since it is larger than the sum of its proper divisors (20499849).

51146871 is a wasteful number, since it uses less digits than its factorization.

51146871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086.

The product of its digits is 6720, while the sum is 33.

The square root of 51146871 is about 7151.7040626693. The cubic root of 51146871 is about 371.1986231889.

The spelling of 51146871 in words is "fifty-one million, one hundred forty-six thousand, eight hundred seventy-one".