91345000133 has 4 divisors (see below), whose sum is σ = 91345763040. Its totient is φ = 91344237228.

The previous prime is 91345000111. The next prime is 91345000141. The reversal of 91345000133 is 33100054319.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 33100054319 = 3511 ⋅9427529.

It is a cyclic number.

It is not a de Polignac number, because 91345000133 - 2³² = 87050032837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91345000096 and 91345000105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91345000433) 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, 158363 + ... + 455816.

It is an arithmetic number, because the mean of its divisors is an integer number (22836440760).

Almost surely, 2^91345000133 is an apocalyptic number.

It is an amenable number.

91345000133 is a deficient number, since it is larger than the sum of its proper divisors (762907).

91345000133 is a wasteful number, since it uses less digits than its factorization.

91345000133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762906.

The product of its (nonzero) digits is 4860, while the sum is 29.

The spelling of 91345000133 in words is "ninety-one billion, three hundred forty-five million, one hundred thirty-three", and thus it is an aban number.