12089331 has 10 divisors (see below), whose sum is σ = 18059492. Its totient is φ = 8059500.

The previous prime is 12089323. The next prime is 12089351. The reversal of 12089331 is 13398021.

It is not a de Polignac number, because 12089331 - 2³ = 12089323 is a prime.

It is a super-2 number, since 2×12089331² = 292303848055122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12089295 and 12089304.

It is not an unprimeable number, because it can be changed into a prime (12089351) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 74545 + ... + 74706.

Almost surely, 2^12089331 is an apocalyptic number.

12089331 is a deficient number, since it is larger than the sum of its proper divisors (5970161).

12089331 is an equidigital number, since it uses as much as digits as its factorization.

12089331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149263 (or 149254 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 12089331 is about 3476.9715270620. The cubic root of 12089331 is about 229.5095472127.

The spelling of 12089331 in words is "twelve million, eighty-nine thousand, three hundred thirty-one".