71047258 has 8 divisors (see below), whose sum is σ = 106652628. Its totient is φ = 35496384.

The previous prime is 71047247. The next prime is 71047259. The reversal of 71047258 is 85274017.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63632529 + 7414729 = 7977^2 + 2723^2 .

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

It is not an unprimeable number, because it can be changed into a prime (71047259) 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, 10191 + ... + 15682.

Almost surely, 2^71047258 is an apocalyptic number.

71047258 is a deficient number, since it is larger than the sum of its proper divisors (35605370).

71047258 is a wasteful number, since it uses less digits than its factorization.

71047258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27248.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 71047258 is about 8428.9535530812. The cubic root of 71047258 is about 414.1736262871.

The spelling of 71047258 in words is "seventy-one million, forty-seven thousand, two hundred fifty-eight".