71230161 has 8 divisors (see below), whose sum is σ = 97290144. Its totient is φ = 46328480.

The previous prime is 71230151. The next prime is 71230189. The reversal of 71230161 is 16103217.

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 71230161 - 2⁵ = 71230129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71230121) 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, 289431 + ... + 289676.

It is an arithmetic number, because the mean of its divisors is an integer number (12161268).

Almost surely, 2^71230161 is an apocalyptic number.

It is an amenable number.

71230161 is a deficient number, since it is larger than the sum of its proper divisors (26059983).

71230161 is a wasteful number, since it uses less digits than its factorization.

71230161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579151.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 71230161 is about 8439.7962653135. The cubic root of 71230161 is about 414.5287358644.

Adding to 71230161 its reverse (16103217), we get a palindrome (87333378).

The spelling of 71230161 in words is "seventy-one million, two hundred thirty thousand, one hundred sixty-one".