12061869 has 4 divisors (see below), whose sum is σ = 16082496. Its totient is φ = 8041244.

The previous prime is 12061859. The next prime is 12061873. The reversal of 12061869 is 96816021.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12061869 is a prime.

It is a super-3 number, since 3×12061869³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12061849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2010309 + ... + 2010314.

It is an arithmetic number, because the mean of its divisors is an integer number (4020624).

Almost surely, 2^12061869 is an apocalyptic number.

It is an amenable number.

12061869 is a deficient number, since it is larger than the sum of its proper divisors (4020627).

12061869 is an equidigital number, since it uses as much as digits as its factorization.

12061869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020626.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 12061869 is about 3473.0201554267. The cubic root of 12061869 is about 229.3356316153.

The spelling of 12061869 in words is "twelve million, sixty-one thousand, eight hundred sixty-nine".