43149 has 8 divisors (see below), whose sum is σ = 60640. Its totient is φ = 27216.

The previous prime is 43133. The next prime is 43151. The reversal of 43149 is 94134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43149 - 2⁴ = 43133 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 43149.

It is not an unprimeable number, because it can be changed into a prime (43159) 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 7 ways as a sum of consecutive naturals, for example, 322 + ... + 435.

It is an arithmetic number, because the mean of its divisors is an integer number (7580).

2⁴³¹⁴⁹ is an apocalyptic number.

It is an amenable number.

43149 is a deficient number, since it is larger than the sum of its proper divisors (17491).

43149 is a wasteful number, since it uses less digits than its factorization.

43149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779.

The product of its digits is 432, while the sum is 21.

The square root of 43149 is about 207.7233737450. The cubic root of 43149 is about 35.0743995598.

The spelling of 43149 in words is "forty-three thousand, one hundred forty-nine".