71002612 has 6 divisors (see below), whose sum is σ = 124254578. Its totient is φ = 35501304.

The previous prime is 71002559. The next prime is 71002619. The reversal of 71002612 is 21620017.

It can be written as a sum of positive squares in only one way, i.e., 70492816 + 509796 = 8396^2 + 714^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71002612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71002619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8875323 + ... + 8875330.

Almost surely, 2^71002612 is an apocalyptic number.

It is an amenable number.

71002612 is a deficient number, since it is larger than the sum of its proper divisors (53251966).

71002612 is a wasteful number, since it uses less digits than its factorization.

71002612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17750657 (or 17750655 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 71002612 is about 8426.3047654354. The cubic root of 71002612 is about 414.0868527279.

Adding to 71002612 its reverse (21620017), we get a palindrome (92622629).

The spelling of 71002612 in words is "seventy-one million, two thousand, six hundred twelve".