91141536 has 24 divisors (see below), whose sum is σ = 239246784. Its totient is φ = 30380480.

The previous prime is 91141517. The next prime is 91141543. The reversal of 91141536 is 63514119.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474600 + ... + 474791.

It is an arithmetic number, because the mean of its divisors is an integer number (9968616).

Almost surely, 2^91141536 is an apocalyptic number.

91141536 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

91141536 is an abundant number, since it is smaller than the sum of its proper divisors (148105248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91141536 is a wasteful number, since it uses less digits than its factorization.

91141536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949404 (or 949396 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 91141536 is about 9546.8076339685. The cubic root of 91141536 is about 450.0272181068.

The spelling of 91141536 in words is "ninety-one million, one hundred forty-one thousand, five hundred thirty-six".