2140241 has 4 divisors (see below), whose sum is σ = 2192484. Its totient is φ = 2088000.

The previous prime is 2140231. The next prime is 2140253. The reversal of 2140241 is 1420412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 883600 + 1256641 = 940^2 + 1121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2140241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2140231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26060 + ... + 26141.

It is an arithmetic number, because the mean of its divisors is an integer number (548121).

2^2140241 is an apocalyptic number.

It is an amenable number.

2140241 is a deficient number, since it is larger than the sum of its proper divisors (52243).

2140241 is an equidigital number, since it uses as much as digits as its factorization.

2140241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52242.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2140241 is about 1462.9562536180. The cubic root of 2140241 is about 128.8707115611.

Adding to 2140241 its reverse (1420412), we get a palindrome (3560653).

The spelling of 2140241 in words is "two million, one hundred forty thousand, two hundred forty-one".