71315229 has 4 divisors (see below), whose sum is σ = 95086976. Its totient is φ = 47543484.

The previous prime is 71315219. The next prime is 71315281. The reversal of 71315229 is 92251317.

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 71315229 - 2⁹ = 71314717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71315196 and 71315205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71315219) 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 in 3 ways as a sum of consecutive naturals, for example, 11885869 + ... + 11885874.

It is an arithmetic number, because the mean of its divisors is an integer number (23771744).

Almost surely, 2^71315229 is an apocalyptic number.

It is an amenable number.

71315229 is a deficient number, since it is larger than the sum of its proper divisors (23771747).

71315229 is a wasteful number, since it uses less digits than its factorization.

71315229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23771746.

The product of its digits is 3780, while the sum is 30.

The square root of 71315229 is about 8444.8344566368. The cubic root of 71315229 is about 414.6936898737.

The spelling of 71315229 in words is "seventy-one million, three hundred fifteen thousand, two hundred twenty-nine".