71418512 has 40 divisors (see below), whose sum is σ = 152802720. Its totient is φ = 32065280.

The previous prime is 71418509. The next prime is 71418517. The reversal of 71418512 is 21581417.

It is not an unprimeable number, because it can be changed into a prime (71418517) 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, 12164 + ... + 17052.

It is an arithmetic number, because the mean of its divisors is an integer number (3820068).

Almost surely, 2^71418512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71418512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76401360).

71418512 is an abundant number, since it is smaller than the sum of its proper divisors (81384208).

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

71418512 is a wasteful number, since it uses less digits than its factorization.

71418512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991 (or 4985 counting only the distinct ones).

The product of its digits is 2240, while the sum is 29.

The square root of 71418512 is about 8450.9474025106. The cubic root of 71418512 is about 414.8937880803.

Adding to 71418512 its reverse (21581417), we get a palindrome (92999929).

The spelling of 71418512 in words is "seventy-one million, four hundred eighteen thousand, five hundred twelve".