2188145219 has 8 divisors (see below), whose sum is σ = 2356900560. Its totient is φ = 2019452256.

The previous prime is 2188145209. The next prime is 2188145249. The reversal of 2188145219 is 9125418812.

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 2188145219 - 2¹⁶ = 2188079683 is a prime.

It is a super-2 number, since 2×2188145219² = 9575958998865115922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2188145209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78197 + ... + 102425.

It is an arithmetic number, because the mean of its divisors is an integer number (294612570).

Almost surely, 2^2188145219 is an apocalyptic number.

2188145219 is a deficient number, since it is larger than the sum of its proper divisors (168755341).

2188145219 is a wasteful number, since it uses less digits than its factorization.

2188145219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31189.

The product of its digits is 46080, while the sum is 41.

The square root of 2188145219 is about 46777.6145073688. The cubic root of 2188145219 is about 1298.2511432345.

The spelling of 2188145219 in words is "two billion, one hundred eighty-eight million, one hundred forty-five thousand, two hundred nineteen".