1144245503 has 24 divisors (see below), whose sum is σ = 1262639424. Its totient is φ = 1035993600.

The previous prime is 1144245491. The next prime is 1144245511. The reversal of 1144245503 is 3055424411.

It is not a de Polignac number, because 1144245503 - 2⁶ = 1144245439 is a prime.

It is a super-2 number, since 2×1144245503² = 2618595542271446018, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144245533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 827873 + ... + 829253.

It is an arithmetic number, because the mean of its divisors is an integer number (52609976).

Almost surely, 2^1144245503 is an apocalyptic number.

1144245503 is a deficient number, since it is larger than the sum of its proper divisors (118393921).

1144245503 is a wasteful number, since it uses less digits than its factorization.

1144245503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523 (or 1506 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1144245503 is about 33826.6980800669. The cubic root of 1144245503 is about 1045.9391153430.

Adding to 1144245503 its reverse (3055424411), we get a palindrome (4199669914).

The spelling of 1144245503 in words is "one billion, one hundred forty-four million, two hundred forty-five thousand, five hundred three".