71102612 has 12 divisors (see below), whose sum is σ = 142205280. Its totient is φ = 30472536.

The previous prime is 71102609. The next prime is 71102659. The reversal of 71102612 is 21620117.

71102612 is an admirable number.

It is a congruent number.

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, 1269662 + ... + 1269717.

It is an arithmetic number, because the mean of its divisors is an integer number (11850440).

Almost surely, 2^71102612 is an apocalyptic number.

It is an amenable number.

71102612 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71102612 is a wasteful number, since it uses less digits than its factorization.

71102612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539390 (or 2539388 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 71102612 is about 8432.2364767599. The cubic root of 71102612 is about 414.2811613565.

Adding to 71102612 its reverse (21620117), we get a palindrome (92722729).

The spelling of 71102612 in words is "seventy-one million, one hundred two thousand, six hundred twelve".