1144663065 has 192 divisors, whose sum is σ = 2576351232. Its totient is φ = 457228800.

The previous prime is 1144663049. The next prime is 1144663081. The reversal of 1144663065 is 5603664411.

It is a happy number.

1144663065 is a `hidden beast` number, since 1 + 14 + 4 + 6 + 630 + 6 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1144663049) and next prime (1144663081).

It is not a de Polignac number, because 1144663065 - 2⁴ = 1144663049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 9013032 + ... + 9013158.

It is an arithmetic number, because the mean of its divisors is an integer number (13418496).

Almost surely, 2^1144663065 is an apocalyptic number.

1144663065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144663065 is an abundant number, since it is smaller than the sum of its proper divisors (1431688167).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144663065 is a wasteful number, since it uses less digits than its factorization.

1144663065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1144663065 is about 33832.8695945230. The cubic root of 1144663065 is about 1046.0663291016.

The spelling of 1144663065 in words is "one billion, one hundred forty-four million, six hundred sixty-three thousand, sixty-five".