2164128043 has 8 divisors (see below), whose sum is σ = 2698133760. Its totient is φ = 1686333480.

The previous prime is 2164128023. The next prime is 2164128047. The reversal of 2164128043 is 3408214612.

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 2164128043 - 2¹⁷ = 2163996971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2164127996 and 2164128014.

It is not an unprimeable number, because it can be changed into a prime (2164128047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14052703 + ... + 14052856.

It is an arithmetic number, because the mean of its divisors is an integer number (337266720).

Almost surely, 2^2164128043 is an apocalyptic number.

2164128043 is a deficient number, since it is larger than the sum of its proper divisors (534005717).

2164128043 is a wasteful number, since it uses less digits than its factorization.

2164128043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28105577.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 2164128043 is about 46520.1896277305. The cubic root of 2164128043 is about 1293.4837713745.

It can be divided in two parts, 21 and 64128043, that added together give a square (64128064 = 8008²).

The spelling of 2164128043 in words is "two billion, one hundred sixty-four million, one hundred twenty-eight thousand, forty-three".