1233445 has 4 divisors (see below), whose sum is σ = 1480140. Its totient is φ = 986752.

The previous prime is 1233439. The next prime is 1233473. The reversal of 1233445 is 5443321.

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 229441 + 1004004 = 479^2 + 1002^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233445 - 2³ = 1233437 is a prime.

1233445 is a lucky number.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123340 + ... + 123349.

It is an arithmetic number, because the mean of its divisors is an integer number (370035).

2^1233445 is an apocalyptic number.

It is an amenable number.

1233445 is a deficient number, since it is larger than the sum of its proper divisors (246695).

1233445 is an equidigital number, since it uses as much as digits as its factorization.

1233445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246694.

The product of its digits is 1440, while the sum is 22.

The square root of 1233445 is about 1110.6056906031. The cubic root of 1233445 is about 107.2440639470.

Adding to 1233445 its reverse (5443321), we get a palindrome (6676766).

The spelling of 1233445 in words is "one million, two hundred thirty-three thousand, four hundred forty-five".