1144635361 has 8 divisors (see below), whose sum is σ = 1173918240. Its totient is φ = 1115473632.

The previous prime is 1144635353. The next prime is 1144635391. The reversal of 1144635361 is 1635364411.

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 1144635361 - 2³ = 1144635353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144635391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10996 + ... + 49093.

It is an arithmetic number, because the mean of its divisors is an integer number (146739780).

Almost surely, 2^1144635361 is an apocalyptic number.

It is an amenable number.

1144635361 is a deficient number, since it is larger than the sum of its proper divisors (29282879).

1144635361 is an equidigital number, since it uses as much as digits as its factorization.

1144635361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60575.

The product of its digits is 25920, while the sum is 34.

The square root of 1144635361 is about 33832.4601677147. The cubic root of 1144635361 is about 1046.0578898044.

Adding to 1144635361 its reverse (1635364411), we get a palindrome (2779999772).

The spelling of 1144635361 in words is "one billion, one hundred forty-four million, six hundred thirty-five thousand, three hundred sixty-one".