2251903 has 2 divisors, whose sum is σ = 2251904. Its totient is φ = 2251902.

The previous prime is 2251901. The next prime is 2251913. The reversal of 2251903 is 3091522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2251903 - 2¹ = 2251901 is a prime.

Together with 2251901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2251901) 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, 1125951 + 1125952.

It is an arithmetic number, because the mean of its divisors is an integer number (1125952).

2^2251903 is an apocalyptic number.

2251903 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251903 is an equidigital number, since it uses as much as digits as its factorization.

2251903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 2251903 is about 1500.6341992638. The cubic root of 2251903 is about 131.0740020474.

The spelling of 2251903 in words is "two million, two hundred fifty-one thousand, nine hundred three".