91535533141001 has 2 divisors, whose sum is σ = 91535533141002. Its totient is φ = 91535533141000.

The previous prime is 91535533140991. The next prime is 91535533141007. The reversal of 91535533141001 is 10014133553519.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66367010094025 + 25168523046976 = 8146595^2 + 5016824^2 .

It is an emirp because it is prime and its reverse (10014133553519) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91535533141001 - 2³⁸ = 91260655234057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91535533141001.

It is not a weakly prime, because it can be changed into another prime (91535533141007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45767766570500 + 45767766570501.

It is an arithmetic number, because the mean of its divisors is an integer number (45767766570501).

Almost surely, 2^{91535533141001} is an apocalyptic number.

It is an amenable number.

91535533141001 is a deficient number, since it is larger than the sum of its proper divisors (1).

91535533141001 is an equidigital number, since it uses as much as digits as its factorization.

91535533141001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121500, while the sum is 41.

The spelling of 91535533141001 in words is "ninety-one trillion, five hundred thirty-five billion, five hundred thirty-three million, one hundred forty-one thousand, one".