1320453 has 12 divisors (see below), whose sum is σ = 1990560. Its totient is φ = 841896.

The previous prime is 1320437. The next prime is 1320533. The reversal of 1320453 is 3540231.

1320453 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 1320453 - 2⁴ = 1320437 is a prime.

It is a super-2 number, since 2×1320453² = 3487192250418, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2983 + ... + 3396.

It is an arithmetic number, because the mean of its divisors is an integer number (165880).

2^1320453 is an apocalyptic number.

It is an amenable number.

1320453 is a deficient number, since it is larger than the sum of its proper divisors (670107).

1320453 is a wasteful number, since it uses less digits than its factorization.

1320453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6408 (or 6405 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1320453 is about 1149.1096553419. The cubic root of 1320453 is about 109.7086781860.

Adding to 1320453 its reverse (3540231), we get a palindrome (4860684).

The spelling of 1320453 in words is "one million, three hundred twenty thousand, four hundred fifty-three".