71404159 has 2 divisors, whose sum is σ = 71404160. Its totient is φ = 71404158.

The previous prime is 71404141. The next prime is 71404163. The reversal of 71404159 is 95140417.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71404159 - 2⁵ = 71404127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71404159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71404189) 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, 35702079 + 35702080.

It is an arithmetic number, because the mean of its divisors is an integer number (35702080).

Almost surely, 2^71404159 is an apocalyptic number.

71404159 is a deficient number, since it is larger than the sum of its proper divisors (1).

71404159 is an equidigital number, since it uses as much as digits as its factorization.

71404159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 71404159 is about 8450.0981651103. The cubic root of 71404159 is about 414.8659924414.

The spelling of 71404159 in words is "seventy-one million, four hundred four thousand, one hundred fifty-nine".