71204233 has 2 divisors, whose sum is σ = 71204234. Its totient is φ = 71204232.

The previous prime is 71204213. The next prime is 71204257. The reversal of 71204233 is 33240217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48622729 + 22581504 = 6973^2 + 4752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71204233 is a prime.

It is not a weakly prime, because it can be changed into another prime (71204213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35602116 + 35602117.

It is an arithmetic number, because the mean of its divisors is an integer number (35602117).

Almost surely, 2^71204233 is an apocalyptic number.

It is an amenable number.

71204233 is a deficient number, since it is larger than the sum of its proper divisors (1).

71204233 is an equidigital number, since it uses as much as digits as its factorization.

71204233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 71204233 is about 8438.2600694693. The cubic root of 71204233 is about 414.4784331777.

Subtracting from 71204233 its sum of digits (22), we obtain a triangular number (71204211 = T₁₁₉₃₃).

It can be divided in two parts, 71 and 204233, that added together give a square (204304 = 452²).

The spelling of 71204233 in words is "seventy-one million, two hundred four thousand, two hundred thirty-three".