91741531422133 has 2 divisors, whose sum is σ = 91741531422134. Its totient is φ = 91741531422132.

The previous prime is 91741531422131. The next prime is 91741531422217. The reversal of 91741531422133 is 33122413514719.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60978013380964 + 30763518041169 = 7808842^2 + 5546487^2 .

It is an emirp because it is prime and its reverse (33122413514719) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91741531422133 - 2¹ = 91741531422131 is a prime.

Together with 91741531422131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91741531422131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45870765711066 + 45870765711067.

It is an arithmetic number, because the mean of its divisors is an integer number (45870765711067).

Almost surely, 2^{91741531422133} is an apocalyptic number.

It is an amenable number.

91741531422133 is a deficient number, since it is larger than the sum of its proper divisors (1).

91741531422133 is an equidigital number, since it uses as much as digits as its factorization.

91741531422133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The spelling of 91741531422133 in words is "ninety-one trillion, seven hundred forty-one billion, five hundred thirty-one million, four hundred twenty-two thousand, one hundred thirty-three".