71136089 has 8 divisors (see below), whose sum is σ = 73164288. Its totient is φ = 69113520.

The previous prime is 71136073. The next prime is 71136113. The reversal of 71136089 is 98063117.

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 71136089 - 2⁴ = 71136073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71136029) 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, 47624 + ... + 49094.

It is an arithmetic number, because the mean of its divisors is an integer number (9145536).

Almost surely, 2^71136089 is an apocalyptic number.

It is an amenable number.

71136089 is a deficient number, since it is larger than the sum of its proper divisors (2028199).

71136089 is a wasteful number, since it uses less digits than its factorization.

71136089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 71136089 is about 8434.2213037126. The cubic root of 71136089 is about 414.3461693498.

The spelling of 71136089 in words is "seventy-one million, one hundred thirty-six thousand, eighty-nine".