1323257 has 4 divisors (see below), whose sum is σ = 1425060. Its totient is φ = 1221456.

The previous prime is 1323253. The next prime is 1323281. The reversal of 1323257 is 7523231.

1323257 is nontrivially palindromic in base 12.

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 364816 + 958441 = 604^2 + 979^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323257 - 2² = 1323253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1323253) 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, 50882 + ... + 50907.

It is an arithmetic number, because the mean of its divisors is an integer number (356265).

2^1323257 is an apocalyptic number.

It is an amenable number.

1323257 is a deficient number, since it is larger than the sum of its proper divisors (101803).

1323257 is a wasteful number, since it uses less digits than its factorization.

1323257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101802.

The product of its digits is 1260, while the sum is 23.

The square root of 1323257 is about 1150.3290833496. The cubic root of 1323257 is about 109.7862792423.

Adding to 1323257 its reverse (7523231), we get a palindrome (8846488).

It can be divided in two parts, 132 and 3257, that multiplied together give a palindrome (429924).

The spelling of 1323257 in words is "one million, three hundred twenty-three thousand, two hundred fifty-seven".