340903 has 2 divisors, whose sum is σ = 340904. Its totient is φ = 340902.

The previous prime is 340897. The next prime is 340909. The reversal of 340903 is 309043.

It is a balanced prime because it is at equal distance from previous prime (340897) and next prime (340909).

It is a cyclic number.

It is not a de Polignac number, because 340903 - 2¹³ = 332711 is a prime.

It is a d-powerful number, because it can be written as 3³ + 4⁹ + 9⁵ + 0 + 0 + 3⁹ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170451 + 170452.

It is an arithmetic number, because the mean of its divisors is an integer number (170452).

2³⁴⁰⁹⁰³ is an apocalyptic number.

340903 is a deficient number, since it is larger than the sum of its proper divisors (1).

340903 is an equidigital number, since it uses as much as digits as its factorization.

340903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 340903 is about 583.8689921549. The cubic root of 340903 is about 69.8570552345.

Adding to 340903 its reverse (309043), we get a palindrome (649946).

The spelling of 340903 in words is "three hundred forty thousand, nine hundred three".