12180369 has 4 divisors (see below), whose sum is σ = 16240496. Its totient is φ = 8120244.

The previous prime is 12180367. The next prime is 12180391. The reversal of 12180369 is 96308121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12180369 - 2¹ = 12180367 is a prime.

It is a super-2 number, since 2×12180369² = 296722777952322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12180361) 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, 2030059 + ... + 2030064.

It is an arithmetic number, because the mean of its divisors is an integer number (4060124).

Almost surely, 2^12180369 is an apocalyptic number.

It is an amenable number.

12180369 is a deficient number, since it is larger than the sum of its proper divisors (4060127).

12180369 is an equidigital number, since it uses as much as digits as its factorization.

12180369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060126.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 12180369 is about 3490.0385384692. The cubic root of 12180369 is about 230.0842098702.

The spelling of 12180369 in words is "twelve million, one hundred eighty thousand, three hundred sixty-nine".