2133541 has 2 divisors, whose sum is σ = 2133542. Its totient is φ = 2133540.

The previous prime is 2133539. The next prime is 2133563. The reversal of 2133541 is 1453312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1404225 + 729316 = 1185^2 + 854^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133541 - 2¹ = 2133539 is a prime.

Together with 2133539, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066770 + 1066771.

It is an arithmetic number, because the mean of its divisors is an integer number (1066771).

2^2133541 is an apocalyptic number.

It is an amenable number.

2133541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133541 is an equidigital number, since it uses as much as digits as its factorization.

2133541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 19.

The square root of 2133541 is about 1460.6645747741. The cubic root of 2133541 is about 128.7360948944.

Adding to 2133541 its reverse (1453312), we get a palindrome (3586853).

The spelling of 2133541 in words is "two million, one hundred thirty-three thousand, five hundred forty-one".