144881089 has 8 divisors (see below), whose sum is σ = 154185768. Its totient is φ = 135663360.

The previous prime is 144881069. The next prime is 144881111. The reversal of 144881089 is 980188441.

It can be written as a sum of positive squares in 4 ways, for example, as 86862400 + 58018689 = 9320^2 + 7617^2 .

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 144881089 - 2⁷ = 144880961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144881059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18282 + ... + 24979.

It is an arithmetic number, because the mean of its divisors is an integer number (19273221).

Almost surely, 2^144881089 is an apocalyptic number.

It is an amenable number.

144881089 is a deficient number, since it is larger than the sum of its proper divisors (9304679).

144881089 is a wasteful number, since it uses less digits than its factorization.

144881089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43475.

The product of its (nonzero) digits is 73728, while the sum is 43.

The square root of 144881089 is about 12036.6560555663. The cubic root of 144881089 is about 525.2151366205.

The spelling of 144881089 in words is "one hundred forty-four million, eight hundred eighty-one thousand, eighty-nine".