47131 has 4 divisors (see below), whose sum is σ = 53872. Its totient is φ = 40392.

The previous prime is 47129. The next prime is 47137. The reversal of 47131 is 13174.

47131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47131 - 2¹ = 47129 is a prime.

It is a super-2 number, since 2×47131² = 4442662322, which contains 22 as substring.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (47137) 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, 3360 + ... + 3373.

It is an arithmetic number, because the mean of its divisors is an integer number (13468).

2⁴⁷¹³¹ is an apocalyptic number.

47131 is a deficient number, since it is larger than the sum of its proper divisors (6741).

47131 is an equidigital number, since it uses as much as digits as its factorization.

47131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6740.

The product of its digits is 84, while the sum is 16.

The square root of 47131 is about 217.0967526243. The cubic root of 47131 is about 36.1217585083.

The spelling of 47131 in words is "forty-seven thousand, one hundred thirty-one".