144612113533 has 4 divisors (see below), whose sum is σ = 144723612220. Its totient is φ = 144500614848.

The previous prime is 144612113509. The next prime is 144612113567. The reversal of 144612113533 is 335311216441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 335311216441 = 446657 ⋅750713.

It can be written as a sum of positive squares in 2 ways, for example, as 68456536164 + 76155577369 = 261642^2 + 275963^2 .

It is a cyclic number.

It is not a de Polignac number, because 144612113533 - 2⁹ = 144612113021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144612113033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55747398 + ... + 55749991.

It is an arithmetic number, because the mean of its divisors is an integer number (36180903055).

Almost surely, 2^144612113533 is an apocalyptic number.

It is an amenable number.

144612113533 is a deficient number, since it is larger than the sum of its proper divisors (111498687).

144612113533 is a wasteful number, since it uses less digits than its factorization.

144612113533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111498686.

The product of its digits is 25920, while the sum is 34.

Adding to 144612113533 its reverse (335311216441), we get a palindrome (479923329974).

The spelling of 144612113533 in words is "one hundred forty-four billion, six hundred twelve million, one hundred thirteen thousand, five hundred thirty-three".