12030397 has 4 divisors (see below), whose sum is σ = 12165660. Its totient is φ = 11895136.

The previous prime is 12030383. The next prime is 12030419. The reversal of 12030397 is 79303021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7986276 + 4044121 = 2826^2 + 2011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12030397 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 (12030377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67498 + ... + 67675.

It is an arithmetic number, because the mean of its divisors is an integer number (3041415).

Almost surely, 2^12030397 is an apocalyptic number.

It is an amenable number.

12030397 is a deficient number, since it is larger than the sum of its proper divisors (135263).

12030397 is an equidigital number, since it uses as much as digits as its factorization.

12030397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135262.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 12030397 is about 3468.4862692535. The cubic root of 12030397 is about 229.1359959541.

The spelling of 12030397 in words is "twelve million, thirty thousand, three hundred ninety-seven".