71159287 has 2 divisors, whose sum is σ = 71159288. Its totient is φ = 71159286.

The previous prime is 71159273. The next prime is 71159357. The reversal of 71159287 is 78295117.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71159287 - 2¹⁹ = 70634999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71159267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35579643 + 35579644.

It is an arithmetic number, because the mean of its divisors is an integer number (35579644).

Almost surely, 2^71159287 is an apocalyptic number.

71159287 is a deficient number, since it is larger than the sum of its proper divisors (1).

71159287 is an equidigital number, since it uses as much as digits as its factorization.

71159287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 40.

The square root of 71159287 is about 8435.5964223047. The cubic root of 71159287 is about 414.3912048956.

The spelling of 71159287 in words is "seventy-one million, one hundred fifty-nine thousand, two hundred eighty-seven".