144847217450247 has 16 divisors (see below), whose sum is σ = 209363137202688. Its totient is φ = 88546439599200.

The previous prime is 144847217450219. The next prime is 144847217450251. The reversal of 144847217450247 is 742054712748441.

It is a happy number.

It is not a de Polignac number, because 144847217450247 - 2⁶ = 144847217450183 is a prime.

It is a super-2 number, since 2×144847217450247² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144847217450297) 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, 12298110723 + ... + 12298122500.

It is an arithmetic number, because the mean of its divisors is an integer number (13085196075168).

Almost surely, 2^{144847217450247} is an apocalyptic number.

144847217450247 is a deficient number, since it is larger than the sum of its proper divisors (64515919752441).

144847217450247 is a wasteful number, since it uses less digits than its factorization.

144847217450247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24596233390.

The product of its (nonzero) digits is 56197120, while the sum is 60.

The spelling of 144847217450247 in words is "one hundred forty-four trillion, eight hundred forty-seven billion, two hundred seventeen million, four hundred fifty thousand, two hundred forty-seven".