144345121501 has 4 divisors (see below), whose sum is σ = 164965853152. Its totient is φ = 123724389852.

The previous prime is 144345121493. The next prime is 144345121577. The reversal of 144345121501 is 105121543441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 105121543441 = 617 ⋅170375273.

It is not a de Polignac number, because 144345121501 - 2³ = 144345121493 is a prime.

It is a super-2 number, since 2×144345121501² (a number of 23 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 (144345121601) 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, 10310365815 + ... + 10310365828.

It is an arithmetic number, because the mean of its divisors is an integer number (41241463288).

Almost surely, 2^144345121501 is an apocalyptic number.

It is an amenable number.

144345121501 is a deficient number, since it is larger than the sum of its proper divisors (20620731651).

144345121501 is an equidigital number, since it uses as much as digits as its factorization.

144345121501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20620731650.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 144345121501 its reverse (105121543441), we get a palindrome (249466664942).

The spelling of 144345121501 in words is "one hundred forty-four billion, three hundred forty-five million, one hundred twenty-one thousand, five hundred one".