1144240513 has 8 divisors (see below), whose sum is σ = 1253145600. Its totient is φ = 1038319248.

The previous prime is 1144240499. The next prime is 1144240523. The reversal of 1144240513 is 3150424411.

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 1144240513 - 2⁹ = 1144240001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144240523) 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, 745153 + ... + 746686.

It is an arithmetic number, because the mean of its divisors is an integer number (156643200).

Almost surely, 2^1144240513 is an apocalyptic number.

1144240513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1144240513 is a deficient number, since it is larger than the sum of its proper divisors (108905087).

1144240513 is a wasteful number, since it uses less digits than its factorization.

1144240513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491911.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1144240513 is about 33826.6243216789. The cubic root of 1144240513 is about 1045.9375949106.

Adding to 1144240513 its reverse (3150424411), we get a palindrome (4294664924).

The spelling of 1144240513 in words is "one billion, one hundred forty-four million, two hundred forty thousand, five hundred thirteen".