71712259 has 2 divisors, whose sum is σ = 71712260. Its totient is φ = 71712258.

The previous prime is 71712257. The next prime is 71712293. The reversal of 71712259 is 95221717.

It is an a-pointer prime, because the next prime (71712293) can be obtained adding 71712259 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71712259 - 2¹ = 71712257 is a prime.

Together with 71712257, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (71712257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35856129 + 35856130.

It is an arithmetic number, because the mean of its divisors is an integer number (35856130).

Almost surely, 2^71712259 is an apocalyptic number.

71712259 is a deficient number, since it is larger than the sum of its proper divisors (1).

71712259 is an equidigital number, since it uses as much as digits as its factorization.

71712259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 34.

The square root of 71712259 is about 8468.3090992240. The cubic root of 71712259 is about 415.4618345266.

The spelling of 71712259 in words is "seventy-one million, seven hundred twelve thousand, two hundred fifty-nine".