1144542553 has 8 divisors (see below), whose sum is σ = 1426962240. Its totient is φ = 891851280.

The previous prime is 1144542547. The next prime is 1144542589. The reversal of 1144542553 is 3552454411.

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

It is a cyclic number.

It is not a de Polignac number, because 1144542553 - 2¹⁷ = 1144411481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144542953) 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 7 ways as a sum of consecutive naturals, for example, 7432018 + ... + 7432171.

It is an arithmetic number, because the mean of its divisors is an integer number (178370280).

Almost surely, 2^1144542553 is an apocalyptic number.

It is an amenable number.

1144542553 is a deficient number, since it is larger than the sum of its proper divisors (282419687).

1144542553 is a wasteful number, since it uses less digits than its factorization.

1144542553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14864207.

The product of its digits is 48000, while the sum is 34.

The square root of 1144542553 is about 33831.0885577157. The cubic root of 1144542553 is about 1046.0296172884.

Adding to 1144542553 its reverse (3552454411), we get a palindrome (4696996964).

The spelling of 1144542553 in words is "one billion, one hundred forty-four million, five hundred forty-two thousand, five hundred fifty-three".