144231155 has 4 divisors (see below), whose sum is σ = 173077392. Its totient is φ = 115384920.

The previous prime is 144231151. The next prime is 144231163. The reversal of 144231155 is 551132441.

144231155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551132441 = 641 ⋅859801.

It is not a de Polignac number, because 144231155 - 2² = 144231151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144231151) 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, 14423111 + ... + 14423120.

It is an arithmetic number, because the mean of its divisors is an integer number (43269348).

Almost surely, 2^144231155 is an apocalyptic number.

144231155 is a deficient number, since it is larger than the sum of its proper divisors (28846237).

144231155 is an equidigital number, since it uses as much as digits as its factorization.

144231155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28846236.

The product of its digits is 2400, while the sum is 26.

The square root of 144231155 is about 12009.6275962246. The cubic root of 144231155 is about 524.4285907006.

Adding to 144231155 its reverse (551132441), we get a palindrome (695363596).

It can be divided in two parts, 14 and 4231155, that multiplied together give a triangular number (59236170 = T₁₀₈₈₄).

The spelling of 144231155 in words is "one hundred forty-four million, two hundred thirty-one thousand, one hundred fifty-five".