1243453 has 6 divisors (see below), whose sum is σ = 1266846. Its totient is φ = 1220472.

The previous prime is 1243439. The next prime is 1243471. The reversal of 1243453 is 3543421.

It can be written as a sum of positive squares in only one way, i.e., 879844 + 363609 = 938^2 + 603^2 .

It is not a de Polignac number, because 1243453 - 2⁵ = 1243421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4351 + ... + 4627.

It is an arithmetic number, because the mean of its divisors is an integer number (211141).

2^1243453 is an apocalyptic number.

It is an amenable number.

1243453 is a deficient number, since it is larger than the sum of its proper divisors (23393).

1243453 is an frugal number, since it uses more digits than its factorization.

1243453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 344 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 1243453 is about 1115.1022374652. The cubic root of 1243453 is about 107.5333374160.

Adding to 1243453 its reverse (3543421), we get a palindrome (4786874).

Subtracting 1243453 from its reverse (3543421), we obtain a cube (2299968 = 132³).

The spelling of 1243453 in words is "one million, two hundred forty-three thousand, four hundred fifty-three".