144312191245 has 4 divisors (see below), whose sum is σ = 173174629500. Its totient is φ = 115449752992.

The previous prime is 144312191207. The next prime is 144312191251. The reversal of 144312191245 is 542191213441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542191213441 = 43 ⋅12609097987.

It can be written as a sum of positive squares in 2 ways, for example, as 17817444324 + 126494746921 = 133482^2 + 355661^2 .

It is a cyclic number.

It is not a de Polignac number, because 144312191245 - 2⁷ = 144312191117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14431219120 + ... + 14431219129.

It is an arithmetic number, because the mean of its divisors is an integer number (43293657375).

Almost surely, 2^144312191245 is an apocalyptic number.

It is an amenable number.

144312191245 is a deficient number, since it is larger than the sum of its proper divisors (28862438255).

144312191245 is an equidigital number, since it uses as much as digits as its factorization.

144312191245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28862438254.

The product of its digits is 34560, while the sum is 37.

The spelling of 144312191245 in words is "one hundred forty-four billion, three hundred twelve million, one hundred ninety-one thousand, two hundred forty-five".