144807040067381 has 4 divisors (see below), whose sum is σ = 144825631298700. Its totient is φ = 144788448836064.

The previous prime is 144807040067257. The next prime is 144807040067407. The reversal of 144807040067381 is 183760040708441.

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 110641156332100 + 34165883735281 = 10518610^2 + 5845159^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144807040067381 is a prime.

It is a super-2 number, since 2×144807040067381² (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 (144807040061381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9295603976 + ... + 9295619553.

It is an arithmetic number, because the mean of its divisors is an integer number (36206407824675).

Almost surely, 2^{144807040067381} is an apocalyptic number.

It is an amenable number.

144807040067381 is a deficient number, since it is larger than the sum of its proper divisors (18591231319).

144807040067381 is an equidigital number, since it uses as much as digits as its factorization.

144807040067381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18591231318.

The product of its (nonzero) digits is 3612672, while the sum is 53.

The spelling of 144807040067381 in words is "one hundred forty-four trillion, eight hundred seven billion, forty million, sixty-seven thousand, three hundred eighty-one".