43051 has 2 divisors, whose sum is σ = 43052. Its totient is φ = 43050.

The previous prime is 43049. The next prime is 43063. The reversal of 43051 is 15034.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43051 - 2¹ = 43049 is a prime.

Together with 43049, it forms a pair of twin primes.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (43151) 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 as a sum of consecutive naturals, namely, 21525 + 21526.

It is an arithmetic number, because the mean of its divisors is an integer number (21526).

2⁴³⁰⁵¹ is an apocalyptic number.

43051 is a deficient number, since it is larger than the sum of its proper divisors (1).

43051 is an equidigital number, since it uses as much as digits as its factorization.

43051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 43051 is about 207.4873490119. The cubic root of 43051 is about 35.0478257751.

Adding to 43051 its reverse (15034), we get a palindrome (58085).

The spelling of 43051 in words is "forty-three thousand, fifty-one".