144474164481 has 4 divisors (see below), whose sum is σ = 192632219312. Its totient is φ = 96316109652.

The previous prime is 144474164459. The next prime is 144474164503. The reversal of 144474164481 is 184461474441.

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 an interprime number because it is at equal distance from previous prime (144474164459) and next prime (144474164503).

It is not a de Polignac number, because 144474164481 - 2⁹ = 144474163969 is a prime.

It is a super-2 number, since 2×144474164481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144474164481.

It is not an unprimeable number, because it can be changed into a prime (144474164441) 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, 24079027411 + ... + 24079027416.

It is an arithmetic number, because the mean of its divisors is an integer number (48158054828).

Almost surely, 2^144474164481 is an apocalyptic number.

It is an amenable number.

144474164481 is a deficient number, since it is larger than the sum of its proper divisors (48158054831).

144474164481 is an equidigital number, since it uses as much as digits as its factorization.

144474164481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48158054830.

The product of its digits is 1376256, while the sum is 48.

The spelling of 144474164481 in words is "one hundred forty-four billion, four hundred seventy-four million, one hundred sixty-four thousand, four hundred eighty-one".