144984257 has 6 divisors (see below), whose sum is σ = 159362994. Its totient is φ = 131803760.

The previous prime is 144984247. The next prime is 144984263. The reversal of 144984257 is 752489441.

It can be written as a sum of positive squares in only one way, i.e., 81558961 + 63425296 = 9031^2 + 7964^2 .

It is not a de Polignac number, because 144984257 - 2⁸ = 144984001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144984247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 598988 + ... + 599229.

It is an arithmetic number, because the mean of its divisors is an integer number (26560499).

Almost surely, 2^144984257 is an apocalyptic number.

It is an amenable number.

144984257 is a deficient number, since it is larger than the sum of its proper divisors (14378737).

144984257 is a wasteful number, since it uses less digits than its factorization.

144984257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198239 (or 1198228 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 144984257 is about 12040.9408685534. The cubic root of 144984257 is about 525.3397734039.

The spelling of 144984257 in words is "one hundred forty-four million, nine hundred eighty-four thousand, two hundred fifty-seven".