12069561 has 8 divisors (see below), whose sum is σ = 18391744. Its totient is φ = 6896880.

The previous prime is 12069517. The next prime is 12069619. The reversal of 12069561 is 16596021.

12069561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12069561 - 2¹⁹ = 11545273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12069961) 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, 287350 + ... + 287391.

It is an arithmetic number, because the mean of its divisors is an integer number (2298968).

Almost surely, 2^12069561 is an apocalyptic number.

It is an amenable number.

12069561 is a deficient number, since it is larger than the sum of its proper divisors (6322183).

12069561 is an equidigital number, since it uses as much as digits as its factorization.

12069561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574751.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 12069561 is about 3474.1273724491. The cubic root of 12069561 is about 229.3843712931.

The spelling of 12069561 in words is "twelve million, sixty-nine thousand, five hundred sixty-one".