71107252 has 6 divisors (see below), whose sum is σ = 124437698. Its totient is φ = 35553624.

The previous prime is 71107249. The next prime is 71107297. The reversal of 71107252 is 25270117.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 65221776 + 5885476 = 8076^2 + 2426^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 8888403 + ... + 8888410.

Almost surely, 2^71107252 is an apocalyptic number.

It is an amenable number.

71107252 is a deficient number, since it is larger than the sum of its proper divisors (53330446).

71107252 is a wasteful number, since it uses less digits than its factorization.

71107252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17776817 (or 17776815 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 71107252 is about 8432.5116068702. The cubic root of 71107252 is about 414.2901728528.

Adding to 71107252 its reverse (25270117), we get a palindrome (96377369).

The spelling of 71107252 in words is "seventy-one million, one hundred seven thousand, two hundred fifty-two".