1321453 has 4 divisors (see below), whose sum is σ = 1510240. Its totient is φ = 1132668.

The previous prime is 1321451. The next prime is 1321457. The reversal of 1321453 is 3541231.

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: 3541231 = 401 ⋅8831.

It is a cyclic number.

It is not a de Polignac number, because 1321453 - 2¹ = 1321451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321451) 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, 94383 + ... + 94396.

It is an arithmetic number, because the mean of its divisors is an integer number (377560).

2^1321453 is an apocalyptic number.

It is an amenable number.

1321453 is a deficient number, since it is larger than the sum of its proper divisors (188787).

1321453 is an equidigital number, since it uses as much as digits as its factorization.

1321453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188786.

The product of its digits is 360, while the sum is 19.

The square root of 1321453 is about 1149.5446924761. The cubic root of 1321453 is about 109.7363659051.

Adding to 1321453 its reverse (3541231), we get a palindrome (4862684).

The spelling of 1321453 in words is "one million, three hundred twenty-one thousand, four hundred fifty-three".