12105154 has 4 divisors (see below), whose sum is σ = 18157734. Its totient is φ = 6052576.

The previous prime is 12105143. The next prime is 12105167. The reversal of 12105154 is 45150121.

12105154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45150121 = 941 ⋅47981.

It can be written as a sum of positive squares in only one way, i.e., 12089529 + 15625 = 3477^2 + 125^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3026287 + ... + 3026290.

Almost surely, 2^12105154 is an apocalyptic number.

12105154 is a deficient number, since it is larger than the sum of its proper divisors (6052580).

12105154 is an equidigital number, since it uses as much as digits as its factorization.

12105154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052579.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 12105154 is about 3479.2461827241. The cubic root of 12105154 is about 229.6096339849.

Adding to 12105154 its reverse (45150121), we get a palindrome (57255275).

The spelling of 12105154 in words is "twelve million, one hundred five thousand, one hundred fifty-four".