144272217 has 8 divisors (see below), whose sum is σ = 203678496. Its totient is φ = 90523712.

The previous prime is 144272209. The next prime is 144272221. The reversal of 144272217 is 712272441.

144272217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144272217 - 2³ = 144272209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144272207) 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, 1414383 + ... + 1414484.

It is an arithmetic number, because the mean of its divisors is an integer number (25459812).

Almost surely, 2^144272217 is an apocalyptic number.

144272217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

144272217 is a deficient number, since it is larger than the sum of its proper divisors (59406279).

144272217 is a wasteful number, since it uses less digits than its factorization.

144272217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828887.

The product of its digits is 6272, while the sum is 30.

The square root of 144272217 is about 12011.3370196660. The cubic root of 144272217 is about 524.4783535126.

The spelling of 144272217 in words is "one hundred forty-four million, two hundred seventy-two thousand, two hundred seventeen".