144155212413505 has 16 divisors (see below), whose sum is σ = 183172920123600. Its totient is φ = 108533874829312.

The previous prime is 144155212413481. The next prime is 144155212413547. The reversal of 144155212413505 is 505314212551441.

It can be written as a sum of positive squares in 8 ways, for example, as 9599295582529 + 134555916830976 = 3098273^2 + 11599824^2 .

It is a cyclic number.

It is not a de Polignac number, because 144155212413505 - 2⁹ = 144155212412993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49517134 + ... + 52347463.

It is an arithmetic number, because the mean of its divisors is an integer number (11448307507725).

Almost surely, 2^{144155212413505} is an apocalyptic number.

It is an amenable number.

144155212413505 is a deficient number, since it is larger than the sum of its proper divisors (39017707710095).

144155212413505 is a wasteful number, since it uses less digits than its factorization.

144155212413505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101881268.

The product of its (nonzero) digits is 480000, while the sum is 43.

Adding to 144155212413505 its reverse (505314212551441), we get a palindrome (649469424964946).

The spelling of 144155212413505 in words is "one hundred forty-four trillion, one hundred fifty-five billion, two hundred twelve million, four hundred thirteen thousand, five hundred five".