91134171 has 6 divisors (see below), whose sum is σ = 131638260. Its totient is φ = 60756108.

The previous prime is 91134167. The next prime is 91134187. The reversal of 91134171 is 17143119.

It is not a de Polignac number, because 91134171 - 2² = 91134167 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91134101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5063001 + ... + 5063018.

It is an arithmetic number, because the mean of its divisors is an integer number (21939710).

Almost surely, 2^91134171 is an apocalyptic number.

91134171 is a deficient number, since it is larger than the sum of its proper divisors (40504089).

91134171 is a wasteful number, since it uses less digits than its factorization.

91134171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10126025 (or 10126022 counting only the distinct ones).

The product of its digits is 756, while the sum is 27.

The square root of 91134171 is about 9546.4218951396. The cubic root of 91134171 is about 450.0150957899.

The spelling of 91134171 in words is "ninety-one million, one hundred thirty-four thousand, one hundred seventy-one".