71313269 has 2 divisors, whose sum is σ = 71313270. Its totient is φ = 71313268.

The previous prime is 71313211. The next prime is 71313293. The reversal of 71313269 is 96231317.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61622500 + 9690769 = 7850^2 + 3113^2 .

It is a cyclic number.

It is not a de Polignac number, because 71313269 - 2⁸ = 71313013 is a prime.

It is a super-3 number, since 3×71313269³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71313469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35656634 + 35656635.

It is an arithmetic number, because the mean of its divisors is an integer number (35656635).

Almost surely, 2^71313269 is an apocalyptic number.

It is an amenable number.

71313269 is a deficient number, since it is larger than the sum of its proper divisors (1).

71313269 is an equidigital number, since it uses as much as digits as its factorization.

71313269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 32.

The square root of 71313269 is about 8444.7184085676. The cubic root of 71313269 is about 414.6898907456.

The spelling of 71313269 in words is "seventy-one million, three hundred thirteen thousand, two hundred sixty-nine".