144636461623 has 4 divisors (see below), whose sum is σ = 144827527720. Its totient is φ = 144445395528.

The previous prime is 144636461621. The next prime is 144636461639. The reversal of 144636461623 is 326164636441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144636461623 - 2¹ = 144636461621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144636461621) 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, 95531913 + ... + 95533426.

It is an arithmetic number, because the mean of its divisors is an integer number (36206881930).

Almost surely, 2^144636461623 is an apocalyptic number.

144636461623 is a deficient number, since it is larger than the sum of its proper divisors (191066097).

144636461623 is an equidigital number, since it uses as much as digits as its factorization.

144636461623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191066096.

The product of its digits is 1492992, while the sum is 46.

The spelling of 144636461623 in words is "one hundred forty-four billion, six hundred thirty-six million, four hundred sixty-one thousand, six hundred twenty-three".