71012653 has 2 divisors, whose sum is σ = 71012654. Its totient is φ = 71012652.

The previous prime is 71012647. The next prime is 71012681. The reversal of 71012653 is 35621017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36942084 + 34070569 = 6078^2 + 5837^2 .

It is a cyclic number.

It is not a de Polignac number, because 71012653 - 2¹⁷ = 70881581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71012603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35506326 + 35506327.

It is an arithmetic number, because the mean of its divisors is an integer number (35506327).

Almost surely, 2^71012653 is an apocalyptic number.

It is an amenable number.

71012653 is a deficient number, since it is larger than the sum of its proper divisors (1).

71012653 is an equidigital number, since it uses as much as digits as its factorization.

71012653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 71012653 is about 8426.9005571444. The cubic root of 71012653 is about 414.1063714939.

The spelling of 71012653 in words is "seventy-one million, twelve thousand, six hundred fifty-three".