12053815 has 8 divisors (see below), whose sum is σ = 14540688. Its totient is φ = 9592320.

The previous prime is 12053807. The next prime is 12053827. The reversal of 12053815 is 51835021.

It is a happy number.

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

It is not a de Polignac number, because 12053815 - 2³ = 12053807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12053815.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5281 + ... + 7210.

It is an arithmetic number, because the mean of its divisors is an integer number (1817586).

Almost surely, 2^12053815 is an apocalyptic number.

12053815 is a deficient number, since it is larger than the sum of its proper divisors (2486873).

12053815 is a wasteful number, since it uses less digits than its factorization.

12053815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12689.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 12053815 is about 3471.8604522648. The cubic root of 12053815 is about 229.2845759445.

Adding to 12053815 its reverse (51835021), we get a palindrome (63888836).

It can be divided in two parts, 120 and 53815, that added together give a palindrome (53935).

The spelling of 12053815 in words is "twelve million, fifty-three thousand, eight hundred fifteen".