144731623943729 has 4 divisors (see below), whose sum is σ = 144731773028976. Its totient is φ = 144731474858484.

The previous prime is 144731623943719. The next prime is 144731623943743. The reversal of 144731623943729 is 927349326137441.

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.

It is a cyclic number.

It is not a de Polignac number, because 144731623943729 - 2¹² = 144731623939633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144731623943719) 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, 73076819 + ... + 75031224.

It is an arithmetic number, because the mean of its divisors is an integer number (36182943257244).

Almost surely, 2^{144731623943729} is an apocalyptic number.

It is an amenable number.

144731623943729 is a deficient number, since it is larger than the sum of its proper divisors (149085247).

144731623943729 is an equidigital number, since it uses as much as digits as its factorization.

144731623943729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149085246.

The product of its digits is 164602368, while the sum is 65.

The spelling of 144731623943729 in words is "one hundred forty-four trillion, seven hundred thirty-one billion, six hundred twenty-three million, nine hundred forty-three thousand, seven hundred twenty-nine".