12032091 has 8 divisors (see below), whose sum is σ = 17825360. Its totient is φ = 8021376.

The previous prime is 12032089. The next prime is 12032143. The reversal of 12032091 is 19023021.

It is a happy number.

It is not a de Polignac number, because 12032091 - 2¹ = 12032089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12032011) 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, 222790 + ... + 222843.

It is an arithmetic number, because the mean of its divisors is an integer number (2228170).

Almost surely, 2^12032091 is an apocalyptic number.

12032091 is a deficient number, since it is larger than the sum of its proper divisors (5793269).

12032091 is an equidigital number, since it uses as much as digits as its factorization.

12032091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445642 (or 445636 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 12032091 is about 3468.7304594044. The cubic root of 12032091 is about 229.1467503279.

The spelling of 12032091 in words is "twelve million, thirty-two thousand, ninety-one".