144320355 has 12 divisors (see below), whose sum is σ = 250155360. Its totient is φ = 76970832.

The previous prime is 144320347. The next prime is 144320359. The reversal of 144320355 is 553023441.

It is not a de Polignac number, because 144320355 - 2³ = 144320347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144320359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1603515 + ... + 1603604.

It is an arithmetic number, because the mean of its divisors is an integer number (20846280).

Almost surely, 2^144320355 is an apocalyptic number.

144320355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144320355 is a deficient number, since it is larger than the sum of its proper divisors (105835005).

144320355 is a wasteful number, since it uses less digits than its factorization.

144320355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207130 (or 3207127 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 144320355 is about 12013.3407093947. The cubic root of 144320355 is about 524.5366796686.

Adding to 144320355 its reverse (553023441), we get a palindrome (697343796).

The spelling of 144320355 in words is "one hundred forty-four million, three hundred twenty thousand, three hundred fifty-five".