71006269 has 2 divisors, whose sum is σ = 71006270. Its totient is φ = 71006268.

The previous prime is 71006261. The next prime is 71006311. The reversal of 71006269 is 96260017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63920025 + 7086244 = 7995^2 + 2662^2 .

It is a cyclic number.

It is not a de Polignac number, because 71006269 - 2³ = 71006261 is a prime.

It is a super-2 number, since 2×71006269² = 10083780474600722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71006269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71006261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35503134 + 35503135.

It is an arithmetic number, because the mean of its divisors is an integer number (35503135).

Almost surely, 2^71006269 is an apocalyptic number.

It is an amenable number.

71006269 is a deficient number, since it is larger than the sum of its proper divisors (1).

71006269 is an equidigital number, since it uses as much as digits as its factorization.

71006269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 71006269 is about 8426.5217616760. The cubic root of 71006269 is about 414.0939618073.

The spelling of 71006269 in words is "seventy-one million, six thousand, two hundred sixty-nine".