71065201 has 4 divisors (see below), whose sum is σ = 71084772. Its totient is φ = 71045632.

The previous prime is 71065199. The next prime is 71065223. The reversal of 71065201 is 10256017.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18879025 + 52186176 = 4345^2 + 7224^2 .

It is a cyclic number.

It is not a de Polignac number, because 71065201 - 2¹ = 71065199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71065231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2560 + ... + 12193.

It is an arithmetic number, because the mean of its divisors is an integer number (17771193).

Almost surely, 2^71065201 is an apocalyptic number.

It is an amenable number.

71065201 is a deficient number, since it is larger than the sum of its proper divisors (19571).

71065201 is a wasteful number, since it uses less digits than its factorization.

71065201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19570.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 71065201 is about 8430.0178528874. The cubic root of 71065201 is about 414.2084898979.

The spelling of 71065201 in words is "seventy-one million, sixty-five thousand, two hundred one".