71131056 has 20 divisors (see below), whose sum is σ = 183755352. Its totient is φ = 23710336.

The previous prime is 71131051. The next prime is 71131091. The reversal of 71131056 is 65013117.

It is a super-3 number, since 3×71131056³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (71131051) 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, 740901 + ... + 740996.

Almost surely, 2^71131056 is an apocalyptic number.

It is an amenable number.

71131056 is an abundant number, since it is smaller than the sum of its proper divisors (112624296).

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

71131056 is a wasteful number, since it uses less digits than its factorization.

71131056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481908 (or 1481902 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 71131056 is about 8433.9229306415. The cubic root of 71131056 is about 414.3363972193.

The spelling of 71131056 in words is "seventy-one million, one hundred thirty-one thousand, fifty-six".