71189201 has 2 divisors, whose sum is σ = 71189202. Its totient is φ = 71189200.

The previous prime is 71189179. The next prime is 71189203. The reversal of 71189201 is 10298117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70140625 + 1048576 = 8375^2 + 1024^2 .

It is a cyclic number.

It is not a de Polignac number, because 71189201 - 2⁶ = 71189137 is a prime.

It is a Sophie Germain prime.

Together with 71189203, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (71189203) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35594600 + 35594601.

It is an arithmetic number, because the mean of its divisors is an integer number (35594601).

Almost surely, 2^71189201 is an apocalyptic number.

It is an amenable number.

71189201 is a deficient number, since it is larger than the sum of its proper divisors (1).

71189201 is an equidigital number, since it uses as much as digits as its factorization.

71189201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 71189201 is about 8437.3693175065. The cubic root of 71189201 is about 414.4492641334.

The spelling of 71189201 in words is "seventy-one million, one hundred eighty-nine thousand, two hundred one".