71216130 has 64 divisors (see below), whose sum is σ = 175104000. Its totient is φ = 18532800.

The previous prime is 71216129. The next prime is 71216147. The reversal of 71216130 is 3161217.

It is a junction number, because it is equal to n+sod(n) for n = 71216097 and 71216106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357771 + ... + 357969.

It is an arithmetic number, because the mean of its divisors is an integer number (2736000).

Almost surely, 2^71216130 is an apocalyptic number.

71216130 is an abundant number, since it is smaller than the sum of its proper divisors (103887870).

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

71216130 is a wasteful number, since it uses less digits than its factorization.

71216130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 71216130 is about 8438.9649839302. The cubic root of 71216130 is about 414.5015159595.

Adding to 71216130 its reverse (3161217), we get a palindrome (74377347).

The spelling of 71216130 in words is "seventy-one million, two hundred sixteen thousand, one hundred thirty".