401121155 has 8 divisors (see below), whose sum is σ = 487145232. Its totient is φ = 317030368.

The previous prime is 401121101. The next prime is 401121169. The reversal of 401121155 is 551121104.

401121155 is digitally balanced in base 6, 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 401121155 - 2¹⁰ = 401120131 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, 482864 + ... + 483693.

It is an arithmetic number, because the mean of its divisors is an integer number (60893154).

Almost surely, 2^401121155 is an apocalyptic number.

401121155 is a deficient number, since it is larger than the sum of its proper divisors (86024077).

401121155 is an equidigital number, since it uses as much as digits as its factorization.

401121155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966645.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 401121155 is about 20028.0092620310. The cubic root of 401121155 is about 737.4940526189.

Adding to 401121155 its reverse (551121104), we get a palindrome (952242259).

The spelling of 401121155 in words is "four hundred one million, one hundred twenty-one thousand, one hundred fifty-five".