1115144365 has 8 divisors (see below), whose sum is σ = 1340650008. Its totient is φ = 890464320.

The previous prime is 1115144357. The next prime is 1115144377. The reversal of 1115144365 is 5634415111.

It can be written as a sum of positive squares in 4 ways, for example, as 5654884 + 1109489481 = 2378^2 + 33309^2 .

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

It is not a de Polignac number, because 1115144365 - 2³ = 1115144357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203422 + ... + 208831.

It is an arithmetic number, because the mean of its divisors is an integer number (167581251).

Almost surely, 2^1115144365 is an apocalyptic number.

It is an amenable number.

1115144365 is a deficient number, since it is larger than the sum of its proper divisors (225505643).

1115144365 is an equidigital number, since it uses as much as digits as its factorization.

1115144365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412799.

The product of its digits is 7200, while the sum is 31.

The square root of 1115144365 is about 33393.7773394984. Note that the first 3 decimals coincide. The cubic root of 1115144365 is about 1036.9958810874.

Adding to 1115144365 its reverse (5634415111), we get a palindrome (6749559476).

The spelling of 1115144365 in words is "one billion, one hundred fifteen million, one hundred forty-four thousand, three hundred sixty-five".