144965217 has 16 divisors (see below), whose sum is σ = 198777600. Its totient is φ = 93916800.

The previous prime is 144965213. The next prime is 144965221. The reversal of 144965217 is 712569441.

It is an interprime number because it is at equal distance from previous prime (144965213) and next prime (144965221).

It is not a de Polignac number, because 144965217 - 2² = 144965213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144965213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31159 + ... + 35507.

It is an arithmetic number, because the mean of its divisors is an integer number (12423600).

Almost surely, 2^144965217 is an apocalyptic number.

It is an amenable number.

144965217 is a deficient number, since it is larger than the sum of its proper divisors (53812383).

144965217 is a wasteful number, since it uses less digits than its factorization.

144965217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664.

The product of its digits is 60480, while the sum is 39.

The square root of 144965217 is about 12040.1502067042. The cubic root of 144965217 is about 525.3167757181.

It can be divided in two parts, 1449 and 65217, that added together give a palindrome (66666).

The spelling of 144965217 in words is "one hundred forty-four million, nine hundred sixty-five thousand, two hundred seventeen".