1252321 has 4 divisors (see below), whose sum is σ = 1431232. Its totient is φ = 1073412.

The previous prime is 1252283. The next prime is 1252331. The reversal of 1252321 is 1232521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1232521 = 223 ⋅5527.

It is a cyclic number.

It is not a de Polignac number, because 1252321 - 2⁷ = 1252193 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1252295 and 1252304.

It is not an unprimeable number, because it can be changed into a prime (1252331) 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, 89445 + ... + 89458.

It is an arithmetic number, because the mean of its divisors is an integer number (357808).

2^1252321 is an apocalyptic number.

It is an amenable number.

1252321 is a deficient number, since it is larger than the sum of its proper divisors (178911).

1252321 is an equidigital number, since it uses as much as digits as its factorization.

1252321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178910.

The product of its digits is 120, while the sum is 16.

The square root of 1252321 is about 1119.0714901203. The cubic root of 1252321 is about 107.7883658504.

Adding to 1252321 its reverse (1232521), we get a palindrome (2484842).

It can be divided in two parts, 12523 and 21, that added together give a square (12544 = 112²).

The spelling of 1252321 in words is "one million, two hundred fifty-two thousand, three hundred twenty-one".