1313233 has 4 divisors (see below), whose sum is σ = 1390500. Its totient is φ = 1235968.

The previous prime is 1313219. The next prime is 1313237. The reversal of 1313233 is 3323131.

1313233 is nontrivially palindromic in base 5.

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 368449 + 944784 = 607^2 + 972^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1313233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313237) 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, 38608 + ... + 38641.

It is an arithmetic number, because the mean of its divisors is an integer number (347625).

2^1313233 is an apocalyptic number.

It is an amenable number.

1313233 is a deficient number, since it is larger than the sum of its proper divisors (77267).

1313233 is an equidigital number, since it uses as much as digits as its factorization.

1313233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77266.

The product of its digits is 162, while the sum is 16.

The square root of 1313233 is about 1145.9637865133. The cubic root of 1313233 is about 109.5083568471.

Adding to 1313233 its reverse (3323131), we get a palindrome (4636364).

It can be divided in two parts, 131 and 3233, that added together give a square (3364 = 58²).

The spelling of 1313233 in words is "one million, three hundred thirteen thousand, two hundred thirty-three".