144120355 has 4 divisors (see below), whose sum is σ = 172944432. Its totient is φ = 115296280.

The previous prime is 144120349. The next prime is 144120359. The reversal of 144120355 is 553021441.

It is a happy number.

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

It is not a de Polignac number, because 144120355 - 2¹⁹ = 143596067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144120359) 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, 14412031 + ... + 14412040.

It is an arithmetic number, because the mean of its divisors is an integer number (43236108).

Almost surely, 2^144120355 is an apocalyptic number.

144120355 is a deficient number, since it is larger than the sum of its proper divisors (28824077).

144120355 is an equidigital number, since it uses as much as digits as its factorization.

144120355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28824076.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 144120355 is about 12005.0137442654. The cubic root of 144120355 is about 524.2942656453.

Adding to 144120355 its reverse (553021441), we get a palindrome (697141796).

The spelling of 144120355 in words is "one hundred forty-four million, one hundred twenty thousand, three hundred fifty-five".