2128019 has 8 divisors (see below), whose sum is σ = 2288640. Its totient is φ = 1972296.

The previous prime is 2128001. The next prime is 2128031. The reversal of 2128019 is 9108212.

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 2128019 - 2¹⁶ = 2062483 is a prime.

It is a super-2 number, since 2×2128019² = 9056929728722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2127985 and 2128003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128039) 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, 299 + ... + 2084.

It is an arithmetic number, because the mean of its divisors is an integer number (286080).

2^2128019 is an apocalyptic number.

2128019 is a deficient number, since it is larger than the sum of its proper divisors (160621).

2128019 is a wasteful number, since it uses less digits than its factorization.

2128019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2128019 is about 1458.7731146412. The cubic root of 2128019 is about 128.6249346376.

The spelling of 2128019 in words is "two million, one hundred twenty-eight thousand, nineteen".