1023266 has 4 divisors (see below), whose sum is σ = 1534902. Its totient is φ = 511632.

The previous prime is 1023263. The next prime is 1023277. The reversal of 1023266 is 6623201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6623201 = 13 ⋅509477.

It can be written as a sum of positive squares in only one way, i.e., 697225 + 326041 = 835^2 + 571^2 .

It is not an unprimeable number, because it can be changed into a prime (1023263) 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, 255815 + ... + 255818.

2^1023266 is an apocalyptic number.

1023266 is a deficient number, since it is larger than the sum of its proper divisors (511636).

1023266 is an equidigital number, since it uses as much as digits as its factorization.

1023266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511635.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1023266 is about 1011.5661125206. The cubic root of 1023266 is about 100.7695953692.

Adding to 1023266 its reverse (6623201), we get a palindrome (7646467).

The spelling of 1023266 in words is "one million, twenty-three thousand, two hundred sixty-six".