71207201 has 8 divisors (see below), whose sum is σ = 78555624. Its totient is φ = 64126080.

The previous prime is 71207189. The next prime is 71207219. The reversal of 71207201 is 10270217.

It can be written as a sum of positive squares in 4 ways, for example, as 226576 + 70980625 = 476^2 + 8425^2 .

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 71207201 - 2⁶ = 71207137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71207261) 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 7 ways as a sum of consecutive naturals, for example, 66266 + ... + 67331.

It is an arithmetic number, because the mean of its divisors is an integer number (9819453).

Almost surely, 2^71207201 is an apocalyptic number.

It is an amenable number.

71207201 is a deficient number, since it is larger than the sum of its proper divisors (7348423).

71207201 is a wasteful number, since it uses less digits than its factorization.

71207201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133651.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 71207201 is about 8438.4359332758. The cubic root of 71207201 is about 414.4841919875.

Adding to 71207201 its reverse (10270217), we get a palindrome (81477418).

The spelling of 71207201 in words is "seventy-one million, two hundred seven thousand, two hundred one".