4155405121 has 8 divisors (see below), whose sum is σ = 4759758144. Its totient is φ = 3553733040.

The previous prime is 4155405113. The next prime is 4155405131. The reversal of 4155405121 is 1215045514.

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 4155405121 - 2³ = 4155405113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4155405121.

It is not an unprimeable number, because it can be changed into a prime (4155405131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666910 + ... + 673111.

It is an arithmetic number, because the mean of its divisors is an integer number (594969768).

Almost surely, 2^4155405121 is an apocalyptic number.

It is an amenable number.

4155405121 is a deficient number, since it is larger than the sum of its proper divisors (604353023).

4155405121 is a wasteful number, since it uses less digits than its factorization.

4155405121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340471.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 4155405121 is about 64462.4318576332. The cubic root of 4155405121 is about 1607.6979459179.

The spelling of 4155405121 in words is "four billion, one hundred fifty-five million, four hundred five thousand, one hundred twenty-one".