1223741 has 4 divisors (see below), whose sum is σ = 1230684. Its totient is φ = 1216800.

The previous prime is 1223731. The next prime is 1223749. The reversal of 1223741 is 1473221.

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 395641 + 828100 = 629^2 + 910^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223741 - 2¹⁰ = 1222717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223749) 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 3 ways as a sum of consecutive naturals, for example, 3200 + ... + 3561.

It is an arithmetic number, because the mean of its divisors is an integer number (307671).

2^1223741 is an apocalyptic number.

It is an amenable number.

1223741 is a deficient number, since it is larger than the sum of its proper divisors (6943).

1223741 is an equidigital number, since it uses as much as digits as its factorization.

1223741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6942.

The product of its digits is 336, while the sum is 20.

The square root of 1223741 is about 1106.2282766229. The cubic root of 1223741 is about 106.9620793217.

Adding to 1223741 its reverse (1473221), we get a palindrome (2696962).

The spelling of 1223741 in words is "one million, two hundred twenty-three thousand, seven hundred forty-one".