91139258341 has 2 divisors, whose sum is σ = 91139258342. Its totient is φ = 91139258340.

The previous prime is 91139258333. The next prime is 91139258369. The reversal of 91139258341 is 14385293119.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76990155841 + 14149102500 = 277471^2 + 118950^2 .

It is an emirp because it is prime and its reverse (14385293119) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91139258341 - 2³ = 91139258333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91139258291 and 91139258300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91139253341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45569629170 + 45569629171.

It is an arithmetic number, because the mean of its divisors is an integer number (45569629171).

Almost surely, 2^91139258341 is an apocalyptic number.

It is an amenable number.

91139258341 is a deficient number, since it is larger than the sum of its proper divisors (1).

91139258341 is an equidigital number, since it uses as much as digits as its factorization.

91139258341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 46.

The spelling of 91139258341 in words is "ninety-one billion, one hundred thirty-nine million, two hundred fifty-eight thousand, three hundred forty-one".