71481305 has 8 divisors (see below), whose sum is σ = 98031552. Its totient is φ = 49015728.

The previous prime is 71481283. The next prime is 71481307. The reversal of 71481305 is 50318417.

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

It is a cyclic number.

It is not a de Polignac number, because 71481305 - 2⁸ = 71481049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71481307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021127 + ... + 1021196.

It is an arithmetic number, because the mean of its divisors is an integer number (12253944).

Almost surely, 2^71481305 is an apocalyptic number.

It is an amenable number.

71481305 is a deficient number, since it is larger than the sum of its proper divisors (26550247).

71481305 is a wasteful number, since it uses less digits than its factorization.

71481305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042335.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 71481305 is about 8454.6617318495. The cubic root of 71481305 is about 415.0153475720.

The spelling of 71481305 in words is "seventy-one million, four hundred eighty-one thousand, three hundred five".