71229 has 4 divisors (see below), whose sum is σ = 94976. Its totient is φ = 47484.

The previous prime is 71209. The next prime is 71233. The reversal of 71229 is 92217.

It is a happy number.

71229 is nontrivially palindromic in base 13.

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.

It is not a de Polignac number, because 71229 - 2⁹ = 70717 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71209) 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, 11869 + ... + 11874.

It is an arithmetic number, because the mean of its divisors is an integer number (23744).

2⁷¹²²⁹ is an apocalyptic number.

It is an amenable number.

71229 is a deficient number, since it is larger than the sum of its proper divisors (23747).

71229 is a wasteful number, since it uses less digits than its factorization.

71229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23746.

The product of its digits is 252, while the sum is 21.

The square root of 71229 is about 266.8876167978. The cubic root of 71229 is about 41.4526483680.

It can be divided in two parts, 712 and 29, that added together give a triangular number (741 = T₃₈).

The spelling of 71229 in words is "seventy-one thousand, two hundred twenty-nine".