1534243 has 4 divisors (see below), whose sum is σ = 1537480. Its totient is φ = 1531008.

The previous prime is 1534223. The next prime is 1534289. The reversal of 1534243 is 3424351.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1534243 - 2⁹ = 1533731 is a prime.

It is a Duffinian number.

1534243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1534213) 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, 753 + ... + 1906.

It is an arithmetic number, because the mean of its divisors is an integer number (384370).

2^1534243 is an apocalyptic number.

1534243 is a deficient number, since it is larger than the sum of its proper divisors (3237).

1534243 is an equidigital number, since it uses as much as digits as its factorization.

1534243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236.

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

The square root of 1534243 is about 1238.6456313248. The cubic root of 1534243 is about 115.3359552197.

Adding to 1534243 its reverse (3424351), we get a palindrome (4958594).

The spelling of 1534243 in words is "one million, five hundred thirty-four thousand, two hundred forty-three".