71317136 has 20 divisors (see below), whose sum is σ = 150738864. Its totient is φ = 32416800.

The previous prime is 71317133. The next prime is 71317151. The reversal of 71317136 is 63171317.

It is a super-2 number, since 2×71317136² = 10172267774484992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71317099 and 71317108.

It is not an unprimeable number, because it can be changed into a prime (71317133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202430 + ... + 202781.

Almost surely, 2^71317136 is an apocalyptic number.

It is an amenable number.

71317136 is an abundant number, since it is smaller than the sum of its proper divisors (79421728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71317136 is a wasteful number, since it uses less digits than its factorization.

71317136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405230 (or 405224 counting only the distinct ones).

The product of its digits is 2646, while the sum is 29.

The square root of 71317136 is about 8444.9473651409. The cubic root of 71317136 is about 414.6973862035.

The spelling of 71317136 in words is "seventy-one million, three hundred seventeen thousand, one hundred thirty-six".