71274229 has 6 divisors (see below), whose sum is σ = 77178786. Its totient is φ = 65791440.

The previous prime is 71274227. The next prime is 71274253. The reversal of 71274229 is 92247217.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 680625 + 70593604 = 825^2 + 8402^2 .

It is not a de Polignac number, because 71274229 - 2¹ = 71274227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71274194 and 71274203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71274221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210702 + ... + 211039.

It is an arithmetic number, because the mean of its divisors is an integer number (12863131).

Almost surely, 2^71274229 is an apocalyptic number.

It is an amenable number.

71274229 is a deficient number, since it is larger than the sum of its proper divisors (5904557).

71274229 is a wasteful number, since it uses less digits than its factorization.

71274229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421767 (or 421754 counting only the distinct ones).

The product of its digits is 14112, while the sum is 34.

The square root of 71274229 is about 8442.4065881714. The cubic root of 71274229 is about 414.6142038094.

The spelling of 71274229 in words is "seventy-one million, two hundred seventy-four thousand, two hundred twenty-nine".