12153155 has 8 divisors (see below), whose sum is σ = 16667232. Its totient is φ = 8333568.

The previous prime is 12153143. The next prime is 12153157. The reversal of 12153155 is 55135121.

It is a happy number.

12153155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12153155 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 12153155.

It is not an unprimeable number, because it can be changed into a prime (12153157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173582 + ... + 173651.

It is an arithmetic number, because the mean of its divisors is an integer number (2083404).

Almost surely, 2^12153155 is an apocalyptic number.

12153155 is a deficient number, since it is larger than the sum of its proper divisors (4514077).

12153155 is an equidigital number, since it uses as much as digits as its factorization.

12153155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347245.

The product of its digits is 750, while the sum is 23.

The square root of 12153155 is about 3486.1375474872. The cubic root of 12153155 is about 229.9127268129.

Adding to 12153155 its reverse (55135121), we get a palindrome (67288276).

The spelling of 12153155 in words is "twelve million, one hundred fifty-three thousand, one hundred fifty-five".