12154144234 has 4 divisors (see below), whose sum is σ = 18231216354. Its totient is φ = 6077072116.

The previous prime is 12154144207. The next prime is 12154144241. The reversal of 12154144234 is 43244145121.

It is a happy number.

12154144234 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.

It can be written as a sum of positive squares in only one way, i.e., 10973191009 + 1180953225 = 104753^2 + 34365^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12154144196 and 12154144205.

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 as a sum of consecutive naturals, namely, 3038536057 + ... + 3038536060.

Almost surely, 2^12154144234 is an apocalyptic number.

12154144234 is a deficient number, since it is larger than the sum of its proper divisors (6077072120).

12154144234 is an equidigital number, since it uses as much as digits as its factorization.

12154144234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6077072119.

The product of its digits is 15360, while the sum is 31.

Adding to 12154144234 its reverse (43244145121), we get a palindrome (55398289355).

The spelling of 12154144234 in words is "twelve billion, one hundred fifty-four million, one hundred forty-four thousand, two hundred thirty-four".