12012579 has 12 divisors (see below), whose sum is σ = 18265000. Its totient is φ = 7586784.

The previous prime is 12012551. The next prime is 12012599. The reversal of 12012579 is 97521021.

12012579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12012579 - 2¹² = 12008483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012599) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34954 + ... + 35295.

Almost surely, 2^12012579 is an apocalyptic number.

12012579 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12012579 is a deficient number, since it is larger than the sum of its proper divisors (6252421).

12012579 is a wasteful number, since it uses less digits than its factorization.

12012579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70274 (or 70271 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 12012579 is about 3465.9167618395. The cubic root of 12012579 is about 229.0228170218.

The spelling of 12012579 in words is "twelve million, twelve thousand, five hundred seventy-nine".