144612617129 has 8 divisors (see below), whose sum is σ = 153493623720. Its totient is φ = 135773208576.

The previous prime is 144612617119. The next prime is 144612617137. The reversal of 144612617129 is 921716216441.

It can be written as a sum of positive squares in 4 ways, for example, as 48913957225 + 95698659904 = 221165^2 + 309352^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144612617129 - 2¹⁶ = 144612551593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144612617129.

It is not an unprimeable number, because it can be changed into a prime (144612617119) 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, 10392344 + ... + 10406249.

It is an arithmetic number, because the mean of its divisors is an integer number (19186702965).

Almost surely, 2^144612617129 is an apocalyptic number.

It is an amenable number.

144612617129 is a deficient number, since it is larger than the sum of its proper divisors (8881006591).

144612617129 is a wasteful number, since it uses less digits than its factorization.

144612617129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20799019.

The product of its digits is 145152, while the sum is 44.

The spelling of 144612617129 in words is "one hundred forty-four billion, six hundred twelve million, six hundred seventeen thousand, one hundred twenty-nine".