71233 has 2 divisors, whose sum is σ = 71234. Its totient is φ = 71232.

The previous prime is 71209. The next prime is 71237. The reversal of 71233 is 33217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66049 + 5184 = 257^2 + 72^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71233 is a prime.

It is not a weakly prime, because it can be changed into another prime (71237) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35616 + 35617.

It is an arithmetic number, because the mean of its divisors is an integer number (35617).

2⁷¹²³³ is an apocalyptic number.

It is an amenable number.

71233 is a deficient number, since it is larger than the sum of its proper divisors (1).

71233 is an equidigital number, since it uses as much as digits as its factorization.

71233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126, while the sum is 16.

The square root of 71233 is about 266.8951104835. The cubic root of 71233 is about 41.4534243042.

Subtracting from 71233 its sum of digits (16), we obtain a palindrome (71217).

The spelling of 71233 in words is "seventy-one thousand, two hundred thirty-three".