144624420521101 has 4 divisors (see below), whose sum is σ = 144624468295804. Its totient is φ = 144624372746400.

The previous prime is 144624420521051. The next prime is 144624420521159. The reversal of 144624420521101 is 101125024426441.

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 7448674559076 + 137175745962025 = 2729226^2 + 11712205^2 .

It is a cyclic number.

It is not a de Polignac number, because 144624420521101 - 2⁹ = 144624420520589 is a prime.

It is a super-2 number, since 2×144624420521101² (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 (144624420551101) 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, 19015290 + ... + 25511371.

It is an arithmetic number, because the mean of its divisors is an integer number (36156117073951).

Almost surely, 2^{144624420521101} is an apocalyptic number.

It is an amenable number.

144624420521101 is a deficient number, since it is larger than the sum of its proper divisors (47774703).

144624420521101 is an equidigital number, since it uses as much as digits as its factorization.

144624420521101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47774702.

The product of its (nonzero) digits is 61440, while the sum is 37.

Adding to 144624420521101 its reverse (101125024426441), we get a palindrome (245749444947542).

The spelling of 144624420521101 in words is "one hundred forty-four trillion, six hundred twenty-four billion, four hundred twenty million, five hundred twenty-one thousand, one hundred one".