144984145 has 4 divisors (see below), whose sum is σ = 173980980. Its totient is φ = 115987312.

The previous prime is 144984121. The next prime is 144984149. The reversal of 144984145 is 541489441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76160529 + 68823616 = 8727^2 + 8296^2 .

It is a cyclic number.

It is not a de Polignac number, because 144984145 - 2⁵ = 144984113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144984098 and 144984107.

It is not an unprimeable number, because it can be changed into a prime (144984149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14498410 + ... + 14498419.

It is an arithmetic number, because the mean of its divisors is an integer number (43495245).

Almost surely, 2^144984145 is an apocalyptic number.

It is an amenable number.

144984145 is a deficient number, since it is larger than the sum of its proper divisors (28996835).

144984145 is an equidigital number, since it uses as much as digits as its factorization.

144984145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28996834.

The product of its digits is 92160, while the sum is 40.

The square root of 144984145 is about 12040.9362177532. The cubic root of 144984145 is about 525.3396381293.

The spelling of 144984145 in words is "one hundred forty-four million, nine hundred eighty-four thousand, one hundred forty-five".