43147 has 4 divisors (see below), whose sum is σ = 46480. Its totient is φ = 39816.

The previous prime is 43133. The next prime is 43151. The reversal of 43147 is 74134.

It is a happy number.

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 43147 - 2⁷ = 43019 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1647 + ... + 1672.

It is an arithmetic number, because the mean of its divisors is an integer number (11620).

2⁴³¹⁴⁷ is an apocalyptic number.

43147 is a deficient number, since it is larger than the sum of its proper divisors (3333).

43147 is a wasteful number, since it uses less digits than its factorization.

43147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332.

The product of its digits is 336, while the sum is 19.

The square root of 43147 is about 207.7185595945. The cubic root of 43147 is about 35.0738576401.

It can be divided in two parts, 43 and 147, that added together give a triangular number (190 = T₁₉).

The spelling of 43147 in words is "forty-three thousand, one hundred forty-seven", and thus it is an iban number.