71201012 has 6 divisors (see below), whose sum is σ = 124601778. Its totient is φ = 35600504.

The previous prime is 71200993. The next prime is 71201021. The reversal of 71201012 is 21010217.

It can be written as a sum of positive squares in only one way, i.e., 69822736 + 1378276 = 8356^2 + 1174^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8900123 + ... + 8900130.

It is an arithmetic number, because the mean of its divisors is an integer number (20766963).

Almost surely, 2^71201012 is an apocalyptic number.

It is an amenable number.

71201012 is a deficient number, since it is larger than the sum of its proper divisors (53400766).

71201012 is a wasteful number, since it uses less digits than its factorization.

71201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17800257 (or 17800255 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 71201012 is about 8438.0692104296. The cubic root of 71201012 is about 414.4721832910.

Adding to 71201012 its reverse (21010217), we get a palindrome (92211229).

The spelling of 71201012 in words is "seventy-one million, two hundred one thousand, twelve".