12009075 has 48 divisors (see below), whose sum is σ = 21769440. Its totient is φ = 5806080.

The previous prime is 12009073. The next prime is 12009077. The reversal of 12009075 is 57090021.

It is an interprime number because it is at equal distance from previous prime (12009073) and next prime (12009077).

It is not a de Polignac number, because 12009075 - 2¹ = 12009073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12009071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106219 + ... + 106331.

It is an arithmetic number, because the mean of its divisors is an integer number (453530).

Almost surely, 2^12009075 is an apocalyptic number.

12009075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12009075 is a deficient number, since it is larger than the sum of its proper divisors (9760365).

12009075 is a wasteful number, since it uses less digits than its factorization.

12009075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 12009075 is about 3465.4112310085. The cubic root of 12009075 is about 229.0005466448. Note that the first 3 decimals are identical.

Adding to 12009075 its reverse (57090021), we get a palindrome (69099096).

It can be divided in two parts, 1200 and 9075, that multiplied together give a square (10890000 = 3300²).

The spelling of 12009075 in words is "twelve million, nine thousand, seventy-five".