71316458 has 4 divisors (see below), whose sum is σ = 106974690. Its totient is φ = 35658228.

The previous prime is 71316451. The next prime is 71316467. The reversal of 71316458 is 85461317.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 58262689 + 13053769 = 7633^2 + 3613^2 .

It is not an unprimeable number, because it can be changed into a prime (71316451) 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, 17829113 + ... + 17829116.

Almost surely, 2^71316458 is an apocalyptic number.

71316458 is a deficient number, since it is larger than the sum of its proper divisors (35658232).

71316458 is a wasteful number, since it uses less digits than its factorization.

71316458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35658231.

The product of its digits is 20160, while the sum is 35.

The square root of 71316458 is about 8444.9072226994. The cubic root of 71316458 is about 414.6960720466.

It can be divided in two parts, 713 and 16458, that added together give a palindrome (17171).

The spelling of 71316458 in words is "seventy-one million, three hundred sixteen thousand, four hundred fifty-eight".