71025412 has 6 divisors (see below), whose sum is σ = 124294478. Its totient is φ = 35512704.

The previous prime is 71025397. The next prime is 71025419. The reversal of 71025412 is 21452017.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36168196 + 34857216 = 6014^2 + 5904^2 .

It is not an unprimeable number, because it can be changed into a prime (71025419) by changing a digit.

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, 8878173 + ... + 8878180.

Almost surely, 2^71025412 is an apocalyptic number.

It is an amenable number.

71025412 is a deficient number, since it is larger than the sum of its proper divisors (53269066).

71025412 is a wasteful number, since it uses less digits than its factorization.

71025412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17756357 (or 17756355 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 71025412 is about 8427.6575630480. The cubic root of 71025412 is about 414.1311711437.

Adding to 71025412 its reverse (21452017), we get a palindrome (92477429).

The spelling of 71025412 in words is "seventy-one million, twenty-five thousand, four hundred twelve".