4155405123 has 16 divisors (see below), whose sum is σ = 5563020320. Its totient is φ = 2759049216.

The previous prime is 4155405113. The next prime is 4155405131. The reversal of 4155405123 is 3215045514.

It is not a de Polignac number, because 4155405123 - 2¹⁴ = 4155388739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4155405103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1309683 + ... + 1312851.

It is an arithmetic number, because the mean of its divisors is an integer number (347688770).

Almost surely, 2^4155405123 is an apocalyptic number.

4155405123 is a deficient number, since it is larger than the sum of its proper divisors (1407615197).

4155405123 is a wasteful number, since it uses less digits than its factorization.

4155405123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 4155405123 is about 64462.4318731461. The cubic root of 4155405123 is about 1607.6979461759.

The spelling of 4155405123 in words is "four billion, one hundred fifty-five million, four hundred five thousand, one hundred twenty-three".