1023265 has 8 divisors (see below), whose sum is σ = 1270440. Its totient is φ = 790272.

The previous prime is 1023263. The next prime is 1023277. The reversal of 1023265 is 5623201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 439569 + 583696 = 663^2 + 764^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1023265 - 2¹ = 1023263 is a prime.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 3384 + ... + 3673.

It is an arithmetic number, because the mean of its divisors is an integer number (158805).

2^1023265 is an apocalyptic number.

It is an amenable number.

1023265 is a deficient number, since it is larger than the sum of its proper divisors (247175).

1023265 is an equidigital number, since it uses as much as digits as its factorization.

1023265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7091.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1023265 is about 1011.5656182374. The cubic root of 1023265 is about 100.7695625431.

Adding to 1023265 its reverse (5623201), we get a palindrome (6646466).

The spelling of 1023265 in words is "one million, twenty-three thousand, two hundred sixty-five".