1023263 has 2 divisors, whose sum is σ = 1023264. Its totient is φ = 1023262.

The previous prime is 1023259. The next prime is 1023277. The reversal of 1023263 is 3623201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1023263 - 2² = 1023259 is a prime.

It is equal to p₈₀₂₁₆ and since 1023263 and 80216 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511631 + 511632.

It is an arithmetic number, because the mean of its divisors is an integer number (511632).

2^1023263 is an apocalyptic number.

1023263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023263 is an equidigital number, since it uses as much as digits as its factorization.

1023263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1023263 is about 1011.5646296703. The cubic root of 1023263 is about 100.7694968907.

Adding to 1023263 its reverse (3623201), we get a palindrome (4646464).

The spelling of 1023263 in words is "one million, twenty-three thousand, two hundred sixty-three".