71150000 has 60 divisors (see below), whose sum is σ = 172426464. Its totient is φ = 28440000.

The previous prime is 71149999. The next prime is 71150059. The reversal of 71150000 is 5117.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 49289 + ... + 50711.

Almost surely, 2^71150000 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 71150000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86213232).

71150000 is an abundant number, since it is smaller than the sum of its proper divisors (101276464).

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

71150000 is an equidigital number, since it uses as much as digits as its factorization.

71150000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456 (or 1430 counting only the distinct ones).

The product of its (nonzero) digits is 35, while the sum is 14.

The square root of 71150000 is about 8435.0459394125. The cubic root of 71150000 is about 414.3731767098.

Adding to 71150000 its reverse (5117), we get a palindrome (71155117).

The spelling of 71150000 in words is "seventy-one million, one hundred fifty thousand".