91266169 has 8 divisors (see below), whose sum is σ = 92715840. Its totient is φ = 89821200.

The previous prime is 91266163. The next prime is 91266179. The reversal of 91266169 is 96166219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91266169 - 2¹⁷ = 91135097 is a prime.

It is a super-2 number, since 2×91266169² = 16659027207873122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91266163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71862 + ... + 73120.

It is an arithmetic number, because the mean of its divisors is an integer number (11589480).

Almost surely, 2^91266169 is an apocalyptic number.

It is an amenable number.

91266169 is a deficient number, since it is larger than the sum of its proper divisors (1449671).

91266169 is a wasteful number, since it uses less digits than its factorization.

91266169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351.

The product of its digits is 34992, while the sum is 40.

The square root of 91266169 is about 9553.3328739242. The cubic root of 91266169 is about 450.2322570600.

It can be divided in two parts, 912 and 66169, that added together give a square (67081 = 259²).

The spelling of 91266169 in words is "ninety-one million, two hundred sixty-six thousand, one hundred sixty-nine".