1307233 has 4 divisors (see below), whose sum is σ = 1352340. Its totient is φ = 1262128.

The previous prime is 1307221. The next prime is 1307261. The reversal of 1307233 is 3327031.

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 717409 + 589824 = 847^2 + 768^2 .

It is a cyclic number.

It is not a de Polignac number, because 1307233 - 2¹³ = 1299041 is a prime.

It is a Duffinian number.

1307233 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1307233.

It is not an unprimeable number, because it can be changed into a prime (1307633) 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, 22510 + ... + 22567.

It is an arithmetic number, because the mean of its divisors is an integer number (338085).

2^1307233 is an apocalyptic number.

It is an amenable number.

1307233 is a deficient number, since it is larger than the sum of its proper divisors (45107).

1307233 is an equidigital number, since it uses as much as digits as its factorization.

1307233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45106.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 1307233 is about 1143.3429056937. The cubic root of 1307233 is about 109.3413254700.

It can be divided in two parts, 1307 and 233, that added together give a triangular number (1540 = T₅₅).

The spelling of 1307233 in words is "one million, three hundred seven thousand, two hundred thirty-three".