144805153 has 4 divisors (see below), whose sum is σ = 148337028. Its totient is φ = 141273280.

The previous prime is 144805109. The next prime is 144805187. The reversal of 144805153 is 351508441.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3504384 + 141300769 = 1872^2 + 11887^2 .

It is a cyclic number.

It is not a de Polignac number, because 144805153 - 2¹⁷ = 144674081 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144805103) 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, 1765876 + ... + 1765957.

It is an arithmetic number, because the mean of its divisors is an integer number (37084257).

Almost surely, 2^144805153 is an apocalyptic number.

It is an amenable number.

144805153 is a deficient number, since it is larger than the sum of its proper divisors (3531875).

144805153 is an equidigital number, since it uses as much as digits as its factorization.

144805153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531874.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 144805153 is about 12033.5012776831. The cubic root of 144805153 is about 525.1233608827.

The spelling of 144805153 in words is "one hundred forty-four million, eight hundred five thousand, one hundred fifty-three".