51543146 has 16 divisors (see below), whose sum is σ = 79991520. Its totient is φ = 24889680.

The previous prime is 51543131. The next prime is 51543203. The reversal of 51543146 is 64134515.

It is a happy number.

51543146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 7781 + ... + 12791.

It is an arithmetic number, because the mean of its divisors is an integer number (4999470).

Almost surely, 2^51543146 is an apocalyptic number.

51543146 is a deficient number, since it is larger than the sum of its proper divisors (28448374).

51543146 is a wasteful number, since it uses less digits than its factorization.

51543146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5189.

The product of its digits is 7200, while the sum is 29.

The square root of 51543146 is about 7179.3555421082. The cubic root of 51543146 is about 372.1548137761.

The spelling of 51543146 in words is "fifty-one million, five hundred forty-three thousand, one hundred forty-six".