1543044242 has 8 divisors (see below), whose sum is σ = 2315250876. Its totient is φ = 771293952.

The previous prime is 1543044241. The next prime is 1543044257. The reversal of 1543044242 is 2424403451.

It can be written as a sum of positive squares in 2 ways, for example, as 1438002241 + 105042001 = 37921^2 + 10249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1543044241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105503 + ... + 119234.

Almost surely, 2^1543044242 is an apocalyptic number.

1543044242 is a deficient number, since it is larger than the sum of its proper divisors (772206634).

1543044242 is a wasteful number, since it uses less digits than its factorization.

1543044242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228172.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 1543044242 is about 39281.6018257912. The cubic root of 1543044242 is about 1155.5607783904.

Adding to 1543044242 its reverse (2424403451), we get a palindrome (3967447693).

The spelling of 1543044242 in words is "one billion, five hundred forty-three million, forty-four thousand, two hundred forty-two".