12153601 has 4 divisors (see below), whose sum is σ = 12161092. Its totient is φ = 12146112.

The previous prime is 12153593. The next prime is 12153611. The reversal of 12153601 is 10635121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1752976 + 10400625 = 1324^2 + 3225^2 .

It is a cyclic number.

It is not a de Polignac number, because 12153601 - 2³ = 12153593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12153611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180 + ... + 4933.

It is an arithmetic number, because the mean of its divisors is an integer number (3040273).

Almost surely, 2^12153601 is an apocalyptic number.

It is an amenable number.

12153601 is a deficient number, since it is larger than the sum of its proper divisors (7491).

12153601 is an equidigital number, since it uses as much as digits as its factorization.

12153601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7490.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 12153601 is about 3486.2015145427. The cubic root of 12153601 is about 229.9155392464.

Adding to 12153601 its reverse (10635121), we get a palindrome (22788722).

The spelling of 12153601 in words is "twelve million, one hundred fifty-three thousand, six hundred one".