71045197 has 8 divisors (see below), whose sum is σ = 71801856. Its totient is φ = 70291872.

The previous prime is 71045173. The next prime is 71045203. The reversal of 71045197 is 79154017.

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 71045197 - 2¹¹ = 71043149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71045147) 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, 74073 + ... + 75025.

It is an arithmetic number, because the mean of its divisors is an integer number (8975232).

Almost surely, 2^71045197 is an apocalyptic number.

It is an amenable number.

71045197 is a deficient number, since it is larger than the sum of its proper divisors (756659).

71045197 is a wasteful number, since it uses less digits than its factorization.

71045197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 71045197 is about 8428.8312950254. The cubic root of 71045197 is about 414.1696213467.

The spelling of 71045197 in words is "seventy-one million, forty-five thousand, one hundred ninety-seven".