12285191 has 6 divisors (see below), whose sum is σ = 12966192. Its totient is φ = 11638260.

The previous prime is 12285173. The next prime is 12285193. The reversal of 12285191 is 19158221.

It is not a de Polignac number, because 12285191 - 2⁶ = 12285127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12285193) 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, 16655 + ... + 17376.

It is an arithmetic number, because the mean of its divisors is an integer number (2161032).

Almost surely, 2^12285191 is an apocalyptic number.

12285191 is a deficient number, since it is larger than the sum of its proper divisors (681001).

12285191 is an equidigital number, since it uses as much as digits as its factorization.

12285191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34069 (or 34050 counting only the distinct ones).

The product of its digits is 1440, while the sum is 29.

The square root of 12285191 is about 3505.0236803765. The cubic root of 12285191 is about 230.7423462328.

The spelling of 12285191 in words is "twelve million, two hundred eighty-five thousand, one hundred ninety-one".