1223461 has 4 divisors (see below), whose sum is σ = 1236172. Its totient is φ = 1210752.

The previous prime is 1223459. The next prime is 1223471. The reversal of 1223461 is 1643221.

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 532900 + 690561 = 730^2 + 831^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223461 - 2¹ = 1223459 is a prime.

It is a Duffinian number.

1223461 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6210 + ... + 6403.

It is an arithmetic number, because the mean of its divisors is an integer number (309043).

2^1223461 is an apocalyptic number.

It is an amenable number.

1223461 is a deficient number, since it is larger than the sum of its proper divisors (12711).

1223461 is an equidigital number, since it uses as much as digits as its factorization.

1223461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12710.

The product of its digits is 288, while the sum is 19.

The square root of 1223461 is about 1106.1017132253. The cubic root of 1223461 is about 106.9539208234.

Adding to 1223461 its reverse (1643221), we get a palindrome (2866682).

The spelling of 1223461 in words is "one million, two hundred twenty-three thousand, four hundred sixty-one".