71033 has 4 divisors (see below), whose sum is σ = 71568. Its totient is φ = 70500.

The previous prime is 71023. The next prime is 71039. The reversal of 71033 is 33017.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 33017 = 137 ⋅241.

It is a cyclic number.

It is not a de Polignac number, because 71033 - 2⁶ = 70969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 70999 and 71017.

It is not an unprimeable number, because it can be changed into a prime (71039) 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, 110 + ... + 392.

It is an arithmetic number, because the mean of its divisors is an integer number (17892).

2⁷¹⁰³³ is an apocalyptic number.

It is an amenable number.

71033 is a deficient number, since it is larger than the sum of its proper divisors (535).

71033 is a wasteful number, since it uses less digits than its factorization.

71033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534.

The product of its (nonzero) digits is 63, while the sum is 14.

The square root of 71033 is about 266.5201680924. The cubic root of 71033 is about 41.4145918520.

The spelling of 71033 in words is "seventy-one thousand, thirty-three".