71030266 has 4 divisors (see below), whose sum is σ = 106545402. Its totient is φ = 35515132.

The previous prime is 71030263. The next prime is 71030273. The reversal of 71030266 is 66203017.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51538041 + 19492225 = 7179^2 + 4415^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71030266.

It is not an unprimeable number, because it can be changed into a prime (71030263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17757565 + ... + 17757568.

Almost surely, 2^71030266 is an apocalyptic number.

71030266 is a deficient number, since it is larger than the sum of its proper divisors (35515136).

71030266 is a wasteful number, since it uses less digits than its factorization.

71030266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35515135.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 71030266 is about 8427.9455385046. The cubic root of 71030266 is about 414.1406050766.

It can be divided in two parts, 710 and 30266, that added together give a square (30976 = 176²).

The spelling of 71030266 in words is "seventy-one million, thirty thousand, two hundred sixty-six".