71163289 has 2 divisors, whose sum is σ = 71163290. Its totient is φ = 71163288.

The previous prime is 71163283. The next prime is 71163293. The reversal of 71163289 is 98236117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66145689 + 5017600 = 8133^2 + 2240^2 .

It is a cyclic number.

It is not a de Polignac number, because 71163289 - 2⁷ = 71163161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71163283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35581644 + 35581645.

It is an arithmetic number, because the mean of its divisors is an integer number (35581645).

Almost surely, 2^71163289 is an apocalyptic number.

It is an amenable number.

71163289 is a deficient number, since it is larger than the sum of its proper divisors (1).

71163289 is an equidigital number, since it uses as much as digits as its factorization.

71163289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 37.

The square root of 71163289 is about 8435.8336280417. The cubic root of 71163289 is about 414.3989732071.

It can be divided in two parts, 711 and 63289, that added together give a cube (64000 = 40³).

The spelling of 71163289 in words is "seventy-one million, one hundred sixty-three thousand, two hundred eighty-nine".