144490085 has 8 divisors (see below), whose sum is σ = 173578776. Its totient is φ = 115464960.

The previous prime is 144490081. The next prime is 144490103. The reversal of 144490085 is 580094441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6145441 + 138344644 = 2479^2 + 11762^2 .

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

It is not a de Polignac number, because 144490085 - 2² = 144490081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144490081) 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, 10736 + ... + 20105.

It is an arithmetic number, because the mean of its divisors is an integer number (21697347).

Almost surely, 2^144490085 is an apocalyptic number.

It is an amenable number.

144490085 is a deficient number, since it is larger than the sum of its proper divisors (29088691).

144490085 is an equidigital number, since it uses as much as digits as its factorization.

144490085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31783.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 144490085 is about 12020.4028634651. The cubic root of 144490085 is about 524.7422287100.

The spelling of 144490085 in words is "one hundred forty-four million, four hundred ninety thousand, eighty-five".