47140 has 12 divisors (see below), whose sum is σ = 99036. Its totient is φ = 18848.

The previous prime is 47137. The next prime is 47143. The reversal of 47140 is 4174.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47137) and next prime (47143).

It can be written as a sum of positive squares in 2 ways, for example, as 12544 + 34596 = 112^2 + 186^2 .

It is an Ulam number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (47143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159 + ... + 1198.

It is an arithmetic number, because the mean of its divisors is an integer number (8253).

2⁴⁷¹⁴⁰ is an apocalyptic number.

It is an amenable number.

47140 is an abundant number, since it is smaller than the sum of its proper divisors (51896).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49518).

47140 is a wasteful number, since it uses less digits than its factorization.

47140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366 (or 2364 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 47140 is about 217.1174797201. The cubic root of 47140 is about 36.1240575977.

The spelling of 47140 in words is "forty-seven thousand, one hundred forty", and thus it is an iban number.