12081575 has 12 divisors (see below), whose sum is σ = 16343448. Its totient is φ = 8786400.

The previous prime is 12081551. The next prime is 12081583. The reversal of 12081575 is 57518021.

It is not a de Polignac number, because 12081575 - 2⁸ = 12081319 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 21692 + ... + 22241.

It is an arithmetic number, because the mean of its divisors is an integer number (1361954).

Almost surely, 2^12081575 is an apocalyptic number.

12081575 is a deficient number, since it is larger than the sum of its proper divisors (4261873).

12081575 is a wasteful number, since it uses less digits than its factorization.

12081575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43954 (or 43949 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 12081575 is about 3475.8560096759. The cubic root of 12081575 is about 229.4604555286.

Adding to 12081575 its reverse (57518021), we get a palindrome (69599596).

The spelling of 12081575 in words is "twelve million, eighty-one thousand, five hundred seventy-five".