144424312155 has 48 divisors (see below), whose sum is σ = 262515408480. Its totient is φ = 73351401984.

The previous prime is 144424312129. The next prime is 144424312199. The reversal of 144424312155 is 551213424441.

144424312155 is a `hidden beast` number, since 1 + 4 + 4 + 4 + 2 + 431 + 215 + 5 = 666.

It is not a de Polignac number, because 144424312155 - 2²² = 144420117851 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 662749 + ... + 853278.

It is an arithmetic number, because the mean of its divisors is an integer number (5469071010).

Almost surely, 2^144424312155 is an apocalyptic number.

144424312155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144424312155 is a deficient number, since it is larger than the sum of its proper divisors (118091096325).

144424312155 is a wasteful number, since it uses less digits than its factorization.

144424312155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516140 (or 1516137 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

Adding to 144424312155 its reverse (551213424441), we get a palindrome (695637736596).

The spelling of 144424312155 in words is "one hundred forty-four billion, four hundred twenty-four million, three hundred twelve thousand, one hundred fifty-five".