91129167 has 12 divisors (see below), whose sum is σ = 131721304. Its totient is φ = 60711120.

The previous prime is 91129117. The next prime is 91129177. The reversal of 91129167 is 76192119.

It is not a de Polignac number, because 91129167 - 2¹¹ = 91127119 is a prime.

It is a super-2 number, since 2×91129167² = 16609050156227778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91129117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16317 + ... + 21177.

Almost surely, 2^91129167 is an apocalyptic number.

91129167 is a deficient number, since it is larger than the sum of its proper divisors (40592137).

91129167 is a wasteful number, since it uses less digits than its factorization.

91129167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6950 (or 6947 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 91129167 is about 9546.1598038164. The cubic root of 91129167 is about 450.0068591547.

The spelling of 91129167 in words is "ninety-one million, one hundred twenty-nine thousand, one hundred sixty-seven".