12153055 has 4 divisors (see below), whose sum is σ = 14583672. Its totient is φ = 9722440.

The previous prime is 12153041. The next prime is 12153061. The reversal of 12153055 is 55035121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55035121 = 151 ⋅364471.

It is not a de Polignac number, because 12153055 - 2⁷ = 12152927 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1215301 + ... + 1215310.

It is an arithmetic number, because the mean of its divisors is an integer number (3645918).

Almost surely, 2^12153055 is an apocalyptic number.

12153055 is a deficient number, since it is larger than the sum of its proper divisors (2430617).

12153055 is an equidigital number, since it uses as much as digits as its factorization.

12153055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430616.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 12153055 is about 3486.1232049370. The cubic root of 12153055 is about 229.9120962130.

Adding to 12153055 its reverse (55035121), we get a palindrome (67188176).

The spelling of 12153055 in words is "twelve million, one hundred fifty-three thousand, fifty-five".