1144806689 has 8 divisors (see below), whose sum is σ = 1251270720. Its totient is φ = 1040971536.

The previous prime is 1144806667. The next prime is 1144806727. The reversal of 1144806689 is 9866084411.

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 1144806689 - 2¹⁶ = 1144741153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144806629) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 656309 + ... + 658050.

It is an arithmetic number, because the mean of its divisors is an integer number (156408840).

Almost surely, 2^1144806689 is an apocalyptic number.

It is an amenable number.

1144806689 is a deficient number, since it is larger than the sum of its proper divisors (106464031).

1144806689 is a wasteful number, since it uses less digits than its factorization.

1144806689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314439.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 1144806689 is about 33834.9920792070. The cubic root of 1144806689 is about 1046.1100782046.

The spelling of 1144806689 in words is "one billion, one hundred forty-four million, eight hundred six thousand, six hundred eighty-nine".