1233641 has 2 divisors, whose sum is σ = 1233642. Its totient is φ = 1233640.

The previous prime is 1233619. The next prime is 1233647. The reversal of 1233641 is 1463321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1008016 + 225625 = 1004^2 + 475^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233641 - 2⁶ = 1233577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1233647) 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 as a sum of consecutive naturals, namely, 616820 + 616821.

It is an arithmetic number, because the mean of its divisors is an integer number (616821).

2^1233641 is an apocalyptic number.

It is an amenable number.

1233641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233641 is an equidigital number, since it uses as much as digits as its factorization.

1233641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 1233641 is about 1110.6939272365. The cubic root of 1233641 is about 107.2497441687.

Adding to 1233641 its reverse (1463321), we get a palindrome (2696962).

The spelling of 1233641 in words is "one million, two hundred thirty-three thousand, six hundred forty-one".