2189331 has 6 divisors (see below), whose sum is σ = 3162380. Its totient is φ = 1459548.

The previous prime is 2189329. The next prime is 2189333. The reversal of 2189331 is 1339812.

It is an interprime number because it is at equal distance from previous prime (2189329) and next prime (2189333).

It is not a de Polignac number, because 2189331 - 2¹ = 2189329 is a prime.

It is a super-2 number, since 2×2189331² = 9586340455122, 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 = 2189295 and 2189304.

It is not an unprimeable number, because it can be changed into a prime (2189333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121621 + ... + 121638.

2^2189331 is an apocalyptic number.

2189331 is a deficient number, since it is larger than the sum of its proper divisors (973049).

2189331 is a wasteful number, since it uses less digits than its factorization.

2189331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243265 (or 243262 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 2189331 is about 1479.6388072770. The cubic root of 2189331 is about 129.8485613282.

The spelling of 2189331 in words is "two million, one hundred eighty-nine thousand, three hundred thirty-one".