1312233 has 8 divisors (see below), whose sum is σ = 1884288. Its totient is φ = 807504.

The previous prime is 1312229. The next prime is 1312237. The reversal of 1312233 is 3322131.

It is an interprime number because it is at equal distance from previous prime (1312229) and next prime (1312237).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1312233 - 2² = 1312229 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1312237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16785 + ... + 16862.

It is an arithmetic number, because the mean of its divisors is an integer number (235536).

2^1312233 is an apocalyptic number.

1312233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1312233 is a deficient number, since it is larger than the sum of its proper divisors (572055).

1312233 is a wasteful number, since it uses less digits than its factorization.

1312233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33663.

The product of its digits is 108, while the sum is 15.

The square root of 1312233 is about 1145.5273894587. The cubic root of 1312233 is about 109.4805536660.

Adding to 1312233 its reverse (3322131), we get a palindrome (4634364).

It can be divided in two parts, 13 and 12233, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 1312233 in words is "one million, three hundred twelve thousand, two hundred thirty-three".