47165144 has 32 divisors (see below), whose sum is σ = 100254000. Its totient is φ = 20621952.

The previous prime is 47165143. The next prime is 47165179. The reversal of 47165144 is 44156174.

It is a self number, because there is not a number n which added to its sum of digits gives 47165144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47165141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9959 + ... + 13910.

Almost surely, 2^47165144 is an apocalyptic number.

It is an amenable number.

47165144 is an abundant number, since it is smaller than the sum of its proper divisors (53088856).

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

47165144 is a wasteful number, since it uses less digits than its factorization.

47165144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23907 (or 23903 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 47165144 is about 6867.6884029490. The cubic root of 47165144 is about 361.3047919190.

The spelling of 47165144 in words is "forty-seven million, one hundred sixty-five thousand, one hundred forty-four".