2051251 has 2 divisors, whose sum is σ = 2051252. Its totient is φ = 2051250.

The previous prime is 2051249. The next prime is 2051263. The reversal of 2051251 is 1521502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2051251 - 2¹ = 2051249 is a prime.

Together with 2051249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2051281) 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, 1025625 + 1025626.

It is an arithmetic number, because the mean of its divisors is an integer number (1025626).

2^2051251 is an apocalyptic number.

2051251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051251 is an equidigital number, since it uses as much as digits as its factorization.

2051251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 2051251 is about 1432.2189078489. The cubic root of 2051251 is about 127.0592444772.

Adding to 2051251 its reverse (1521502), we get a palindrome (3572753).

The spelling of 2051251 in words is "two million, fifty-one thousand, two hundred fifty-one".