91008132535 has 16 divisors (see below), whose sum is σ = 109545384960. Its totient is φ = 72582933760.

The previous prime is 91008132533. The next prime is 91008132559. The reversal of 91008132535 is 53523180019.

It is a happy number.

It is not a de Polignac number, because 91008132535 - 2¹ = 91008132533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91008132494 and 91008132503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91008132533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4664781 + ... + 4684249.

It is an arithmetic number, because the mean of its divisors is an integer number (6846586560).

Almost surely, 2^91008132535 is an apocalyptic number.

91008132535 is a deficient number, since it is larger than the sum of its proper divisors (18537252425).

91008132535 is a wasteful number, since it uses less digits than its factorization.

91008132535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22298.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 91008132535 in words is "ninety-one billion, eight million, one hundred thirty-two thousand, five hundred thirty-five".