65043 has 20 divisors (see below), whose sum is σ = 107448. Its totient is φ = 38880.

The previous prime is 65033. The next prime is 65053. The reversal of 65043 is 34056.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65033) and next prime (65053).

It is not a de Polignac number, because 65043 - 2⁴ = 65027 is a prime.

It is an Ulam number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (65003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 855 + ... + 927.

2⁶⁵⁰⁴³ is an apocalyptic number.

65043 is a deficient number, since it is larger than the sum of its proper divisors (42405).

65043 is a wasteful number, since it uses less digits than its factorization.

65043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 65043 is about 255.0352916755. The cubic root of 65043 is about 40.2161218473.

Subtracting from 65043 its sum of digits (18), we obtain a square (65025 = 255²).

Adding to 65043 its reverse (34056), we get a palindrome (99099).

The spelling of 65043 in words is "sixty-five thousand, forty-three".