1023259 has 2 divisors, whose sum is σ = 1023260. Its totient is φ = 1023258.

The previous prime is 1023257. The next prime is 1023263. The reversal of 1023259 is 9523201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1023259 - 2¹ = 1023257 is a prime.

Together with 1023257, 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 (1023257) 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, 511629 + 511630.

It is an arithmetic number, because the mean of its divisors is an integer number (511630).

2^1023259 is an apocalyptic number.

1023259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023259 is an equidigital number, since it uses as much as digits as its factorization.

1023259 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 1023259 is about 1011.5626525332. The cubic root of 1023259 is about 100.7693655858.

The spelling of 1023259 in words is "one million, twenty-three thousand, two hundred fifty-nine".