91228000271 has 2 divisors, whose sum is σ = 91228000272. Its totient is φ = 91228000270.

The previous prime is 91228000247. The next prime is 91228000313. The reversal of 91228000271 is 17200082219.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91228000271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91228000211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45614000135 + 45614000136.

It is an arithmetic number, because the mean of its divisors is an integer number (45614000136).

Almost surely, 2^91228000271 is an apocalyptic number.

91228000271 is a deficient number, since it is larger than the sum of its proper divisors (1).

91228000271 is an equidigital number, since it uses as much as digits as its factorization.

91228000271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 91228000271 in words is "ninety-one billion, two hundred twenty-eight million, two hundred seventy-one", and thus it is an aban number.