43148291 has 4 divisors (see below), whose sum is σ = 43406832. Its totient is φ = 42889752.

The previous prime is 43148263. The next prime is 43148321. The reversal of 43148291 is 19284134.

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 43148291 - 2¹⁰ = 43147267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43148251) 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, 129020 + ... + 129353.

It is an arithmetic number, because the mean of its divisors is an integer number (10851708).

Almost surely, 2^43148291 is an apocalyptic number.

43148291 is a deficient number, since it is larger than the sum of its proper divisors (258541).

43148291 is a wasteful number, since it uses less digits than its factorization.

43148291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258540.

The product of its digits is 6912, while the sum is 32.

The square root of 43148291 is about 6568.7358753416. The cubic root of 43148291 is about 350.7420745117.

The spelling of 43148291 in words is "forty-three million, one hundred forty-eight thousand, two hundred ninety-one".