144643201 has 4 divisors (see below), whose sum is σ = 147372372. Its totient is φ = 141914032.

The previous prime is 144643189. The next prime is 144643223. The reversal of 144643201 is 102346441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102346441 = 151 ⋅677791.

It can be written as a sum of positive squares in 2 ways, for example, as 86044176 + 58599025 = 9276^2 + 7655^2 .

It is a cyclic number.

It is not a de Polignac number, because 144643201 - 2¹⁹ = 144118913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144641201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1364506 + ... + 1364611.

It is an arithmetic number, because the mean of its divisors is an integer number (36843093).

Almost surely, 2^144643201 is an apocalyptic number.

It is an amenable number.

144643201 is a deficient number, since it is larger than the sum of its proper divisors (2729171).

144643201 is an equidigital number, since it uses as much as digits as its factorization.

144643201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729170.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 144643201 is about 12026.7701815575. The cubic root of 144643201 is about 524.9275195480.

Adding to 144643201 its reverse (102346441), we get a palindrome (246989642).

It can be divided in two parts, 14464 and 3201, that multiplied together give a palindrome (46299264).

The spelling of 144643201 in words is "one hundred forty-four million, six hundred forty-three thousand, two hundred one".