144243133 has 2 divisors, whose sum is σ = 144243134. Its totient is φ = 144243132.

The previous prime is 144243091. The next prime is 144243137. The reversal of 144243133 is 331342441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117223929 + 27019204 = 10827^2 + 5198^2 .

It is a cyclic number.

It is not a de Polignac number, because 144243133 - 2²¹ = 142145981 is a prime.

It is equal to p_8138410 and since 144243133 and 8138410 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 144243098 and 144243107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144243137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72121566 + 72121567.

It is an arithmetic number, because the mean of its divisors is an integer number (72121567).

Almost surely, 2^144243133 is an apocalyptic number.

It is an amenable number.

144243133 is a deficient number, since it is larger than the sum of its proper divisors (1).

144243133 is an equidigital number, since it uses as much as digits as its factorization.

144243133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 25.

The square root of 144243133 is about 12010.1262691114. The cubic root of 144243133 is about 524.4431077485.

Adding to 144243133 its reverse (331342441), we get a palindrome (475585574).

The spelling of 144243133 in words is "one hundred forty-four million, two hundred forty-three thousand, one hundred thirty-three".