1223065 has 8 divisors (see below), whose sum is σ = 1554120. Its totient is φ = 920832.

The previous prime is 1223059. The next prime is 1223077. The reversal of 1223065 is 5603221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 149769 + 1073296 = 387^2 + 1036^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223065 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7110 + ... + 7279.

It is an arithmetic number, because the mean of its divisors is an integer number (194265).

2^1223065 is an apocalyptic number.

It is an amenable number.

1223065 is a deficient number, since it is larger than the sum of its proper divisors (331055).

1223065 is a wasteful number, since it uses less digits than its factorization.

1223065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14411.

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

The square root of 1223065 is about 1105.9226916923. The cubic root of 1223065 is about 106.9423802504.

Adding to 1223065 its reverse (5603221), we get a palindrome (6826286).

The spelling of 1223065 in words is "one million, two hundred twenty-three thousand, sixty-five".