91011141 has 32 divisors (see below), whose sum is σ = 145797120. Its totient is φ = 55778112.

The previous prime is 91011131. The next prime is 91011163. The reversal of 91011141 is 14111019.

It is a de Polignac number, because none of the positive numbers 2^k-91011141 is a prime.

It is a super-2 number, since 2×91011141² = 16566055572243762, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91011131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134095 + ... + 134771.

It is an arithmetic number, because the mean of its divisors is an integer number (4556160).

Almost surely, 2^91011141 is an apocalyptic number.

It is an amenable number.

91011141 is a deficient number, since it is larger than the sum of its proper divisors (54785979).

91011141 is a wasteful number, since it uses less digits than its factorization.

91011141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The square root of 91011141 is about 9539.9759433659. The cubic root of 91011141 is about 449.8124996633.

The spelling of 91011141 in words is "ninety-one million, eleven thousand, one hundred forty-one".