71442212 has 12 divisors (see below), whose sum is σ = 125937420. Its totient is φ = 35460096.

The previous prime is 71442193. The next prime is 71442229. The reversal of 71442212 is 21224417.

It can be written as a sum of positive squares in 2 ways, for example, as 29658916 + 41783296 = 5446^2 + 6464^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64637 + ... + 65732.

It is an arithmetic number, because the mean of its divisors is an integer number (10494785).

Almost surely, 2^71442212 is an apocalyptic number.

It is an amenable number.

71442212 is a deficient number, since it is larger than the sum of its proper divisors (54495208).

71442212 is a wasteful number, since it uses less digits than its factorization.

71442212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130510 (or 130508 counting only the distinct ones).

The product of its digits is 896, while the sum is 23.

The square root of 71442212 is about 8452.3494958503. The cubic root of 71442212 is about 414.9396767209.

Adding to 71442212 its reverse (21224417), we get a palindrome (92666629).

The spelling of 71442212 in words is "seventy-one million, four hundred forty-two thousand, two hundred twelve".