10223665 has 4 divisors (see below), whose sum is σ = 12268404. Its totient is φ = 8178928.

The previous prime is 10223663. The next prime is 10223669. The reversal of 10223665 is 56632201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1597696 + 8625969 = 1264^2 + 2937^2 .

It is a cyclic number.

It is not a de Polignac number, because 10223665 - 2¹ = 10223663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10223663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022362 + ... + 1022371.

It is an arithmetic number, because the mean of its divisors is an integer number (3067101).

Almost surely, 2^10223665 is an apocalyptic number.

It is an amenable number.

10223665 is a deficient number, since it is larger than the sum of its proper divisors (2044739).

10223665 is an equidigital number, since it uses as much as digits as its factorization.

10223665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044738.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 10223665 is about 3197.4466375532. The cubic root of 10223665 is about 217.0378790933.

Adding to 10223665 its reverse (56632201), we get a palindrome (66855866).

The spelling of 10223665 in words is "ten million, two hundred twenty-three thousand, six hundred sixty-five".