12009535 has 8 divisors (see below), whose sum is σ = 14683680. Its totient is φ = 9426144.

The previous prime is 12009523. The next prime is 12009541. The reversal of 12009535 is 53590021.

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

It is a cyclic number.

It is not a de Polignac number, because 12009535 - 2⁷ = 12009407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22395 + ... + 22924.

It is an arithmetic number, because the mean of its divisors is an integer number (1835460).

Almost surely, 2^12009535 is an apocalyptic number.

12009535 is a deficient number, since it is larger than the sum of its proper divisors (2674145).

12009535 is an equidigital number, since it uses as much as digits as its factorization.

12009535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45377.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 12009535 is about 3465.4776005624. The cubic root of 12009535 is about 229.0034705143.

Adding to 12009535 its reverse (53590021), we get a palindrome (65599556).

It can be divided in two parts, 12009 and 535, that added together give a square (12544 = 112²).

The spelling of 12009535 in words is "twelve million, nine thousand, five hundred thirty-five".