4121240155 has 8 divisors (see below), whose sum is σ = 4951264032. Its totient is φ = 3293141568.

The previous prime is 4121240117. The next prime is 4121240171. The reversal of 4121240155 is 5510421214.

4121240155 is digitally balanced in base 3, 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 4121240155 - 2⁹ = 4121239643 is a prime.

It is a Duffinian number.

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, 476607 + ... + 485176.

It is an arithmetic number, because the mean of its divisors is an integer number (618908004).

Almost surely, 2^4121240155 is an apocalyptic number.

4121240155 is a deficient number, since it is larger than the sum of its proper divisors (830023877).

4121240155 is an equidigital number, since it uses as much as digits as its factorization.

4121240155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962645.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 4121240155 is about 64196.8858668394. The cubic root of 4121240155 is about 1603.2797509430.

Adding to 4121240155 its reverse (5510421214), we get a palindrome (9631661369).

The spelling of 4121240155 in words is "four billion, one hundred twenty-one million, two hundred forty thousand, one hundred fifty-five".