2189541 has 16 divisors (see below), whose sum is σ = 3110400. Its totient is φ = 1366128.

The previous prime is 2189533. The next prime is 2189543. The reversal of 2189541 is 1459812.

It is a happy number.

It is not a de Polignac number, because 2189541 - 2³ = 2189533 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2189499 and 2189508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5920 + ... + 6278.

It is an arithmetic number, because the mean of its divisors is an integer number (194400).

2^2189541 is an apocalyptic number.

It is an amenable number.

2189541 is a deficient number, since it is larger than the sum of its proper divisors (920859).

2189541 is a wasteful number, since it uses less digits than its factorization.

2189541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488.

The product of its digits is 2880, while the sum is 30.

The square root of 2189541 is about 1479.7097688398. The cubic root of 2189541 is about 129.8527128744.

The spelling of 2189541 in words is "two million, one hundred eighty-nine thousand, five hundred forty-one".