1312433 has 4 divisors (see below), whose sum is σ = 1315188. Its totient is φ = 1309680.

The previous prime is 1312411. The next prime is 1312459. The reversal of 1312433 is 3342131.

It is a happy number.

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 552049 + 760384 = 743^2 + 872^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312433 - 2⁸ = 1312177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312133) 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, 458 + ... + 1683.

It is an arithmetic number, because the mean of its divisors is an integer number (328797).

2^1312433 is an apocalyptic number.

It is an amenable number.

1312433 is a deficient number, since it is larger than the sum of its proper divisors (2755).

1312433 is an equidigital number, since it uses as much as digits as its factorization.

1312433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754.

The product of its digits is 216, while the sum is 17.

The square root of 1312433 is about 1145.6146821685. The cubic root of 1312433 is about 109.4861154320.

Adding to 1312433 its reverse (3342131), we get a palindrome (4654564).

The spelling of 1312433 in words is "one million, three hundred twelve thousand, four hundred thirty-three".