1144351013 has 8 divisors (see below), whose sum is σ = 1233485400. Its totient is φ = 1055374848.

The previous prime is 1144351009. The next prime is 1144351027. The reversal of 1144351013 is 3101534411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 693889 + 1143657124 = 833^2 + 33818^2 .

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 1144351013 - 2² = 1144351009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1144351013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144351003) 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, 24308 + ... + 53661.

It is an arithmetic number, because the mean of its divisors is an integer number (154185675).

Almost surely, 2^1144351013 is an apocalyptic number.

1144351013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1144351013 is a deficient number, since it is larger than the sum of its proper divisors (89134387).

1144351013 is a wasteful number, since it uses less digits than its factorization.

1144351013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79111.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1144351013 is about 33828.2576110565. The cubic root of 1144351013 is about 1045.9712627694.

Adding to 1144351013 its reverse (3101534411), we get a palindrome (4245885424).

The spelling of 1144351013 in words is "one billion, one hundred forty-four million, three hundred fifty-one thousand, thirteen".