71065450 has 12 divisors (see below), whose sum is σ = 132181830. Its totient is φ = 28426160.

The previous prime is 71065447. The next prime is 71065471. The reversal of 71065450 is 5456017.

It can be written as a sum of positive squares in 3 ways, for example, as 54508689 + 16556761 = 7383^2 + 4069^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 710605 + ... + 710704.

Almost surely, 2^71065450 is an apocalyptic number.

71065450 is a deficient number, since it is larger than the sum of its proper divisors (61116380).

71065450 is a wasteful number, since it uses less digits than its factorization.

71065450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421321 (or 1421316 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 71065450 is about 8430.0326215264. The cubic root of 71065450 is about 414.2089736687.

The spelling of 71065450 in words is "seventy-one million, sixty-five thousand, four hundred fifty".