1144644065 has 8 divisors (see below), whose sum is σ = 1420937640. Its totient is φ = 884138752.

The previous prime is 1144644049. The next prime is 1144644079. The reversal of 1144644065 is 5604464411.

It can be written as a sum of positive squares in 4 ways, for example, as 208773601 + 935870464 = 14449^2 + 30592^2 .

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 1144644065 - 2⁴ = 1144644049 is a prime.

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, 3946904 + ... + 3947193.

It is an arithmetic number, because the mean of its divisors is an integer number (177617205).

Almost surely, 2^1144644065 is an apocalyptic number.

It is an amenable number.

1144644065 is a deficient number, since it is larger than the sum of its proper divisors (276293575).

1144644065 is an equidigital number, since it uses as much as digits as its factorization.

1144644065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7894131.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 1144644065 is about 33832.5888013318. The cubic root of 1144644065 is about 1046.0605412644.

It can be divided in two parts, 114464406 and 5, that added together give a palindrome (114464411).

The spelling of 1144644065 in words is "one billion, one hundred forty-four million, six hundred forty-four thousand, sixty-five".