1144516618 has 24 divisors (see below), whose sum is σ = 1998764964. Its totient is φ = 490089600.

The previous prime is 1144516601. The next prime is 1144516651. The reversal of 1144516618 is 8166154411.

It can be written as a sum of positive squares in 2 ways, for example, as 816073489 + 328443129 = 28567^2 + 18123^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 129088 + ... + 137668.

Almost surely, 2^1144516618 is an apocalyptic number.

1144516618 is a deficient number, since it is larger than the sum of its proper divisors (854248346).

1144516618 is a wasteful number, since it uses less digits than its factorization.

1144516618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9958 (or 9951 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The square root of 1144516618 is about 33830.7052542509. The cubic root of 1144516618 is about 1046.0217163202.

The spelling of 1144516618 in words is "one billion, one hundred forty-four million, five hundred sixteen thousand, six hundred eighteen".