144243335244541 has 4 divisors (see below), whose sum is σ = 155338976417212. Its totient is φ = 133147694071872.

The previous prime is 144243335244493. The next prime is 144243335244577. The reversal of 144243335244541 is 145442533342441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78743368072516 + 65499967172025 = 8873746^2 + 8093205^2 .

It is a cyclic number.

It is not a de Polignac number, because 144243335244541 - 2⁴¹ = 142044311988989 is a prime.

It is a super-2 number, since 2×144243335244541² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144243335214541) 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, 5547820586316 + ... + 5547820586341.

It is an arithmetic number, because the mean of its divisors is an integer number (38834744104303).

Almost surely, 2^{144243335244541} is an apocalyptic number.

It is an amenable number.

144243335244541 is a deficient number, since it is larger than the sum of its proper divisors (11095641172671).

144243335244541 is a wasteful number, since it uses less digits than its factorization.

144243335244541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11095641172670.

The product of its digits is 11059200, while the sum is 49.

Adding to 144243335244541 its reverse (145442533342441), we get a palindrome (289685868586982).

The spelling of 144243335244541 in words is "one hundred forty-four trillion, two hundred forty-three billion, three hundred thirty-five million, two hundred forty-four thousand, five hundred forty-one".