71136129 has 8 divisors (see below), whose sum is σ = 95595520. Its totient is φ = 47050416.

The previous prime is 71136113. The next prime is 71136139. The reversal of 71136129 is 92163117.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71136129 - 2⁴ = 71136113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71136096 and 71136105.

It is not an unprimeable number, because it can be changed into a prime (71136139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92974 + ... + 93735.

It is an arithmetic number, because the mean of its divisors is an integer number (11949440).

Almost surely, 2^71136129 is an apocalyptic number.

It is an amenable number.

71136129 is a deficient number, since it is larger than the sum of its proper divisors (24459391).

71136129 is a wasteful number, since it uses less digits than its factorization.

71136129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186839.

The product of its digits is 2268, while the sum is 30.

The square root of 71136129 is about 8434.2236750041. The cubic root of 71136129 is about 414.3462470125.

The spelling of 71136129 in words is "seventy-one million, one hundred thirty-six thousand, one hundred twenty-nine".