2040251 has 2 divisors, whose sum is σ = 2040252. Its totient is φ = 2040250.

The previous prime is 2040229. The next prime is 2040253. The reversal of 2040251 is 1520402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2040251 is a prime.

Together with 2040253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2040253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020125 + 1020126.

It is an arithmetic number, because the mean of its divisors is an integer number (1020126).

2^2040251 is an apocalyptic number.

2040251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040251 is an equidigital number, since it uses as much as digits as its factorization.

2040251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2040251 is about 1428.3735505812. The cubic root of 2040251 is about 126.8317154393.

Adding to 2040251 its reverse (1520402), we get a palindrome (3560653).

The spelling of 2040251 in words is "two million, forty thousand, two hundred fifty-one".