144261033643 has 4 divisors (see below), whose sum is σ = 144405729760. Its totient is φ = 144116337528.

The previous prime is 144261033593. The next prime is 144261033649. The reversal of 144261033643 is 346330162441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346330162441 = 479 ⋅723027479.

It is a cyclic number.

It is not a de Polignac number, because 144261033643 - 2⁹ = 144261033131 is a prime.

It is a super-2 number, since 2×144261033643² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144261033649) 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, 72346563 + ... + 72348556.

It is an arithmetic number, because the mean of its divisors is an integer number (36101432440).

Almost surely, 2^144261033643 is an apocalyptic number.

144261033643 is a deficient number, since it is larger than the sum of its proper divisors (144696117).

144261033643 is an equidigital number, since it uses as much as digits as its factorization.

144261033643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144696116.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 144261033643 in words is "one hundred forty-four billion, two hundred sixty-one million, thirty-three thousand, six hundred forty-three".