91134490241 has 4 divisors (see below), whose sum is σ = 94277058900. Its totient is φ = 87991921584.

The previous prime is 91134490231. The next prime is 91134490267. The reversal of 91134490241 is 14209443119.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14209443119 = 47 ⋅302328577.

It can be written as a sum of positive squares in 2 ways, for example, as 35994057841 + 55140432400 = 189721^2 + 234820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91134490241 is a prime.

It is a super-2 number, since 2×91134490241² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 91134490195 and 91134490204.

It is not an unprimeable number, because it can be changed into a prime (91134490201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1571284286 + ... + 1571284343.

It is an arithmetic number, because the mean of its divisors is an integer number (23569264725).

Almost surely, 2^91134490241 is an apocalyptic number.

It is an amenable number.

91134490241 is a deficient number, since it is larger than the sum of its proper divisors (3142568659).

91134490241 is a wasteful number, since it uses less digits than its factorization.

91134490241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142568658.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 91134490241 in words is "ninety-one billion, one hundred thirty-four million, four hundred ninety thousand, two hundred forty-one".