47142184 has 16 divisors (see below), whose sum is σ = 89068320. Its totient is φ = 23390640.

The previous prime is 47142163. The next prime is 47142187. The reversal of 47142184 is 48124174.

It is a happy number.

47142184 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (47142187) 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 3 ways as a sum of consecutive naturals, for example, 21444 + ... + 23539.

It is an arithmetic number, because the mean of its divisors is an integer number (5566770).

Almost surely, 2^47142184 is an apocalyptic number.

It is an amenable number.

47142184 is a deficient number, since it is larger than the sum of its proper divisors (41926136).

47142184 is a wasteful number, since it uses less digits than its factorization.

47142184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45120 (or 45116 counting only the distinct ones).

The product of its digits is 7168, while the sum is 31.

The square root of 47142184 is about 6866.0166035337. The cubic root of 47142184 is about 361.2461546587.

The spelling of 47142184 in words is "forty-seven million, one hundred forty-two thousand, one hundred eighty-four".