2250019 has 4 divisors (see below), whose sum is σ = 2254720. Its totient is φ = 2245320.

The previous prime is 2250013. The next prime is 2250029. The reversal of 2250019 is 9100522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9100522 = 2 ⋅4550261.

It is a cyclic number.

It is not a de Polignac number, because 2250019 - 2⁵ = 2249987 is a prime.

It is a super-2 number, since 2×2250019² = 10125171000722, which contains 22 as substring.

It is a Duffinian number.

2250019 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2249978 and 2250005.

It is not an unprimeable number, because it can be changed into a prime (2250013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1539 + ... + 2620.

It is an arithmetic number, because the mean of its divisors is an integer number (563680).

2^2250019 is an apocalyptic number.

2250019 is a deficient number, since it is larger than the sum of its proper divisors (4701).

2250019 is an equidigital number, since it uses as much as digits as its factorization.

2250019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2250019 is about 1500.0063333200. The cubic root of 2250019 is about 131.0374385545.

Subtracting from 2250019 its sum of digits (19), we obtain a square (2250000 = 1500²).

The spelling of 2250019 in words is "two million, two hundred fifty thousand, nineteen".