51146144 has 24 divisors (see below), whose sum is σ = 115079328. Its totient is φ = 21919680.

The previous prime is 51146143. The next prime is 51146167. The reversal of 51146144 is 44164115.

It is not an unprimeable number, because it can be changed into a prime (51146143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113942 + ... + 114389.

It is an arithmetic number, because the mean of its divisors is an integer number (4794972).

Almost surely, 2^51146144 is an apocalyptic number.

It is an amenable number.

51146144 is an abundant number, since it is smaller than the sum of its proper divisors (63933184).

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

51146144 is a wasteful number, since it uses less digits than its factorization.

51146144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228348 (or 228340 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 51146144 is about 7151.6532354414. The cubic root of 51146144 is about 371.1968644454.

The spelling of 51146144 in words is "fifty-one million, one hundred forty-six thousand, one hundred forty-four".