1312232 has 16 divisors (see below), whose sum is σ = 2501700. Its totient is φ = 645120.

The previous prime is 1312229. The next prime is 1312237. The reversal of 1312232 is 2322131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 894916 + 417316 = 946^2 + 646^2 .

It is a d-powerful number, because it can be written as 1 + 3⁵ + 1 + 2¹⁰ + 2¹⁸ + 3⁵ + 2²⁰ .

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 3 ways as a sum of consecutive naturals, for example, 857 + ... + 1832.

2^1312232 is an apocalyptic number.

It is an amenable number.

1312232 is a deficient number, since it is larger than the sum of its proper divisors (1189468).

1312232 is a wasteful number, since it uses less digits than its factorization.

1312232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756 (or 2752 counting only the distinct ones).

The product of its digits is 72, while the sum is 14.

The square root of 1312232 is about 1145.5269529784. The cubic root of 1312232 is about 109.4805258558.

Adding to 1312232 its reverse (2322131), we get a palindrome (3634363).

It can be divided in two parts, 13122 and 32, that multiplied together give a square (419904 = 648²).

The spelling of 1312232 in words is "one million, three hundred twelve thousand, two hundred thirty-two".