2051417 has 2 divisors, whose sum is σ = 2051418. Its totient is φ = 2051416.

The previous prime is 2051383. The next prime is 2051419. The reversal of 2051417 is 7141502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1073296 + 978121 = 1036^2 + 989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051417 is a prime.

Together with 2051419, 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 (2051419) 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, 1025708 + 1025709.

It is an arithmetic number, because the mean of its divisors is an integer number (1025709).

2^2051417 is an apocalyptic number.

It is an amenable number.

2051417 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051417 is an equidigital number, since it uses as much as digits as its factorization.

2051417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 2051417 is about 1432.2768587113. The cubic root of 2051417 is about 127.0626718597.

Adding to 2051417 its reverse (7141502), we get a palindrome (9192919).

The spelling of 2051417 in words is "two million, fifty-one thousand, four hundred seventeen".