71230273 has 8 divisors (see below), whose sum is σ = 72047592. Its totient is φ = 70417536.

The previous prime is 71230199. The next prime is 71230277. The reversal of 71230273 is 37203217.

It can be written as a sum of positive squares in 4 ways, for example, as 7118224 + 64112049 = 2668^2 + 8007^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71230273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71230277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37011 + ... + 38887.

It is an arithmetic number, because the mean of its divisors is an integer number (9005949).

Almost surely, 2^71230273 is an apocalyptic number.

It is an amenable number.

71230273 is a deficient number, since it is larger than the sum of its proper divisors (817319).

71230273 is a wasteful number, since it uses less digits than its factorization.

71230273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 71230273 is about 8439.8029005422. The cubic root of 71230273 is about 414.5289531282.

The spelling of 71230273 in words is "seventy-one million, two hundred thirty thousand, two hundred seventy-three".