71105473 has 2 divisors, whose sum is σ = 71105474. Its totient is φ = 71105472.

The previous prime is 71105471. The next prime is 71105483. The reversal of 71105473 is 37450117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68359824 + 2745649 = 8268^2 + 1657^2 .

It is a cyclic number.

It is not a de Polignac number, because 71105473 - 2¹ = 71105471 is a prime.

Together with 71105471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (71105471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35552736 + 35552737.

It is an arithmetic number, because the mean of its divisors is an integer number (35552737).

Almost surely, 2^71105473 is an apocalyptic number.

It is an amenable number.

71105473 is a deficient number, since it is larger than the sum of its proper divisors (1).

71105473 is an equidigital number, since it uses as much as digits as its factorization.

71105473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 71105473 is about 8432.4061216239. The cubic root of 71105473 is about 414.2867178448.

The spelling of 71105473 in words is "seventy-one million, one hundred five thousand, four hundred seventy-three".