1144560985 has 8 divisors (see below), whose sum is σ = 1374856776. Its totient is φ = 914726400.

The previous prime is 1144560947. The next prime is 1144561003. The reversal of 1144560985 is 5890654411.

It can be written as a sum of positive squares in 4 ways, for example, as 590052681 + 554508304 = 24291^2 + 23548^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1144560985 - 2²⁹ = 607690073 is a prime.

It is a Duffinian number.

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, 109816 + ... + 119785.

It is an arithmetic number, because the mean of its divisors is an integer number (171857097).

Almost surely, 2^1144560985 is an apocalyptic number.

It is an amenable number.

1144560985 is a deficient number, since it is larger than the sum of its proper divisors (230295791).

1144560985 is an equidigital number, since it uses as much as digits as its factorization.

1144560985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230603.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 1144560985 is about 33831.3609687816. The cubic root of 1144560985 is about 1046.0352324326.

The spelling of 1144560985 in words is "one billion, one hundred forty-four million, five hundred sixty thousand, nine hundred eighty-five".