12154155115 has 8 divisors (see below), whose sum is σ = 14895305280. Its totient is φ = 9516444672.

The previous prime is 12154155107. The next prime is 12154155133. The reversal of 12154155115 is 51155145121.

12154155115 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 not a de Polignac number, because 12154155115 - 2³ = 12154155107 is a prime.

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 in 7 ways as a sum of consecutive naturals, for example, 25859670 + ... + 25860139.

It is an arithmetic number, because the mean of its divisors is an integer number (1861913160).

Almost surely, 2^12154155115 is an apocalyptic number.

12154155115 is a deficient number, since it is larger than the sum of its proper divisors (2741150165).

12154155115 is an equidigital number, since it uses as much as digits as its factorization.

12154155115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51719861.

The product of its digits is 5000, while the sum is 31.

The spelling of 12154155115 in words is "twelve billion, one hundred fifty-four million, one hundred fifty-five thousand, one hundred fifteen".